However treatment quotes images haldol 5 mg, the amount of correction needed may induce shinee symptoms mp3 haldol 10mg discount, if undertaken acutely treatment 20 initiative haldol 1.5mg generic, an unwanted sudden tension on soft tissues symptoms xylene poisoning generic haldol 5mg free shipping, particularly nerves. With the Ilizarov method, it is now possible to undertake large corrections with a much lower risk. The correction is performed gradually with the aid of an external fixator; length, rotation and translation deformities can be dealt with simultaneously. The principle of tension stress can also be applied to correcting soft-tissue contractures. Leg length difference at maturity is estimated through charts and tables and by plotting the rate of change in discrepancy over a period. Another method is to excise a rectangular block of bone across the physis, rotate the block through 90 degrees and then reinsert it into the original bed. When the physis fuses (epiphyseodesis), longitudinal growth at that site ceases and the overall gain in length of the limb is retarded. If it is inaccurately timed, a difference in leg lengths will remain, and if improperly done, deformity may occur. Physeal arrest will create a loss of 10 mm of length a year from the distal femur and 6 mm a year from the proximal tibia. As the physes close naturally at 16 years of age in boys and 14 years in girls, a predicted length discrepancy at maturity of 45 mm can, for example, be addressed by both a dis- tal femoral and proximal tibial physeal arrest performed about 3 years before skeletal maturity. Epiphyseodesis produces approximate length equalization, often to within 10 mm of estimated length, if performed in a timely fashion. Other methods of predicting the timing of epiphyseodesis are chart based (Moseley, 1977; Eastwood and Cole, 1995) or use a multiplier method (Aguilar et al. In adults, it is necessary to excise a segment of bone, preferably from the femur, since tibial shortening is more complicated and is cosmetically unattractive; up to 7. The safest technique is to excise a segment from between the lesser trochanter and the femoral isthmus, to approximate the cut ends, and to fix them together with a locking intramedullary nail or plate. Open excision of bone segments from the long leg has several disadvantages, among which scarring and poor muscle tone are 322 important. The scarring results from a longitudinal incision being suddenly subjected to a concertina effect, which causes the wound to gape widely. In general, shortening of the long leg is reserved for situations where the patient is too old for an epiphyseodesis or where lengthening the short leg is deemed too risky. It should also be remembered that the longer leg is usually the normal one and if a serious complication such as non-union ensues, the patient may be worse off than not having an operation in the first place. Nevertheless, successful treatment is so rewarding ("People no longer look at me in the street; I can now get things off a shelf without having to climb up") that it should not be withheld if the patient is otherwise normal and is psychologically prepared. The techniques of lengthening are as described earlier and two bones can be dealt with simultaneously. It is more usual to lengthen both tibiae at one procedure and both femora at another. Stimulation of the growth plate can be achieved by the technique of periosteal division. A circumferential 5 mm strip is excised from around the distal femoral or proximal tibial physis (Wilde and Baker, 1987). The physis responds with an accelerated growth rate that may last for up to 2 years. However, like epiphyseodesis, poor technique may produce deformity; the method is probably best reserved for young children (younger than 6 years) as the effects on older children are unpredictable. Limb lengthening by the Ilizarov method is a suitable method for predicted length discrepancies of greater than 5 cm. Distraction osteogenesis has become much safer since it was appreciated that distraction has to be slow if neural or vascular damage is to be avoided (see earlier). Major length corrections can be tackled by staging the treatment process over several years, or by attempting to lengthen at two levels within the same bone (bifocal lengthening). The latter method, although attractive, has a higher rate of complications largely from the soft tissues being distracted too quickly. The intra-articular tissues should be handled with great care, and if postoperative bleeding is expected (e. Following the operation the joint should be rested for a few days, but thereafter movement must be encouraged. Arthrodesis is also useful for a knee that is already fairly stiff (provided the other knee has good movement) and for a flail shoulder. Though it is a reasonable alternative to arthroplasty or osteotomy for joint disease in young patients, there is an understandable resistance to sacrificing all movement in such an important joint. Sometimes bone grafts are added in the larger joints to promote osseous bridging. This movement is limited and occurs through intervening fibrous tissue, which forms in the gap. The prosthesis is kept in position either by acrylic cement or by a press-fit between implant and bone. Irrespective of type, these components are fixed to the host bone, either with acrylic cement or by a cementless press-fit technique. Using hip replacement as an example, the rationale, indications and complications of total joint replacement are discussed in detail in Chapter 19. Microsurgical techniques are used in repairing nerves and vessels, transplanting bone or soft tissue with a vascular pedicle, transferring a less essential digit (e. Essential prerequisites are an operating microscope, special instruments, microsutures, a chair with (a) (b) (c) 12. But the hand survived, has moderate sensation and the patient was able to return to work (as a guillotine operator in a paper works! The more muscle in the amputated part, the shorter the period it will last; warm ischaemic periods of greater than 6 hours are likely to result in permanent muscle damage and may even produce severe systemic upset in the patient when reperfusion of the muscle occurs. Two teams dissect, identify and mark each artery, nerve and vein of the stump and the limb. Following careful debridement the bones are shortened to reduce tension and are stabilized internally. Only healthy ends of approximately equal diameter should be joined; tension, kinking and torsion must be prevented. Decompression of skin and fascia, as well as thrombectomy, may be needed in the postoperative period. It should be carried out only in centres specially equipped and by teams specially trained for this work. In crush injury, releasing the compression may result in renal failure (the crush syndrome). This may be because of: (1) pain; (2) gross malformation; (3) recurrent sepsis or (4) severe loss of function. The combination of deformity and loss of sensation is particularly trying, and in the lower limb is likely to result in pressure ulceration. Skin flaps sufficient to cover the deep tissues are cut and sutured loosely over a pack. A definitive end-bearing amputation is performed when pressure or weight is to be borne through the end of a stump. Therefore the scar must not be terminal, and the bone end must be solid, not hollow, which means it must be cut through or near a joint. Because weight is not to be taken at the end of the stump, the scar can be terminal. Too long a stump may have inadequate circulation and can become painful, or ulcerate; moreover, it complicates the incorporation of a joint in the prosthesis.
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In an actively growing cyst medicine for sore throat order haldol 5 mg overnight delivery, there is osteoclastic resorption of the adjacent bone medicine 219 discount haldol 5mg on-line. Treatment Treatment depends on whether the cyst is There is always the risk that the cyst will recur and more than one operation may be needed symptoms quit smoking order 10 mg haldol free shipping. Asymptomatic lesions in older children can be left alone but the patient should be cautioned to avoid injury which might cause a fracture symptoms 9dpo haldol 1.5 mg free shipping. If the cyst goes on enlarging, or if there is a pathological fracture, the cavity should be thoroughly cleaned by curettage and then packed with bone chips, but great care should be taken not to damage the nearby physeal plate. If the risk of fracture is thought to be high, prophylactic internal fixation should be applied. Usually it arises spontaneously but it may appear after degeneration or haemorrhage in some other lesion. X-rays show a well-defined radiolucent cyst, often trabeculated and eccentrically placed. In a growing tubular bone it is always situated in the metaphysis and therefore may resemble a simple cyst or one of the other cyst-like lesions. In an adult an aneurysmal bone cyst may be mistaken for a giant-cell tumour (a) (b) (c) (d) 9. Looks cystic but it is actually a radiolucent benign tumour; always in the metaphysis; hard boundary tailing off towards the diaphysis. Hardly ever appears before epiphysis has fused, the pathognomonic feature is that it extends right up to the subarticular bone plate; sometimes malignant. Pathology hurry to re-operate; the lesion occasionally heals spontaneously (Malghem et al. When the cyst is opened it is found to contain clotted blood, and during curettage there may be considerable bleeding from the fleshy lining membrane. Histologically the lining consists of fibrous tissue with vascular spaces, deposits of haemosiderin and multinucleated giant cells. Occasionally the appearances so closely resemble those of giant-cell tumour that only the most experienced pathologists can confidently make the diagnosis. It is hardly ever seen before closure of the nearby physis and characteristically it extends right up to the subarticular bone plate. The patient is usually a young adult who complains of pain at the end of a long bone; sometimes there is slight swelling. A history of trauma is not uncommon Treatment the cyst should be carefully opened, thor- oughly curetted and then packed with bone grafts. Sometimes the graft is resorbed and the cyst recurs, necessitating a second or third operation. X-rays show a radiolucent area situated eccentrically at the end of a long bone and bounded by the subchondral bone plate. The endosteal margin may be quite obvious, but in aggressive lesions it is ill-defined. The centre sometimes has a soap-bubble appearance due to ridging of the surrounding bone. The cortex is thin and sometimes ballooned; aggressive lesions extend into the soft tissue. This can be done either as a frozen section before proceeding with operative treatment or (especially if a more extensive operation is contemplated) as a separate procedure. More aggressive tumours, and recurrent lesions, should be treated by excision followed, if necessary, by bone grafting or prosthetic replacement. Aggressive lesions have a poorly defined edge and extend well into the surrounding bone. Histologically the striking feature is an abundance of multinucleated giant cells scattered on a background of stromal cells with little or no visible intercellular tissue. Aggressive lesions tend to show more cellular atypia and mitotic figures, but histological grading is unreliable as a predictor of tumour behaviour. There is a high risk of metastasis and treatment requires wide, or even radical, resection. Eosinophilic granuloma is the commonest of these conditions, and the only one presenting as a pure bone lesion. Marrow-containing bone is resorbed and one or more lytic lesions may appear in the flat bones or the metaphyses of long bones. The patient is usually a child; there is seldom any complaint of pain and the condition is discovered incidentally or after a pathological fracture. X-ray shows a well-demarcated oval area of radiolucency within the bone; sometimes this is associated with marked reactive sclerosis. There may be multiple lesions and in the skull they have a characteristic punched-out appearance. Vertebral collapse may result in a flat wedge (vertebra plana) which is pathognomonic. Occasionally, however, a solitary lesion may herald the onset of one of the generalized disorders (see below). Operation is usually done to obtain a biopsy; if the lesion is easily accessible it may be completely excised or curetted; if not, radiotherapy is effective. The patient is a child, usually with widespread lesions involving the skull, vertebral bodies, liver and spleen. Individual lesions can be treated by curettage or radiotherapy; however, complete remission is very unlikely. They are usually symptomless and discovered accidentally when the back is x-rayed for some other reason. However, if the patient does have backache, the haemangioma is likely to be blamed. Other sites include the skull and pelvis where the appearance occasionally suggests malignancy, but there is no associated cortical or medullary destruction. If operation is needed there is a risk of profuse bleeding, and embolization may be a useful preliminary. Less common varieties are juxtacortical chondrosarcoma, clear-cell chondrosarcoma and mesenchymal chondrosarcoma. Central chondrosarcoma the tumour develops in the medullary cavity of either tubular or flat bones, most commonly at the proximal end of the femur or in the innominate bone of the pelvis. X-rays show an expanded, somewhat radiolucent area in the bone, with flecks of increased density due to calcification within the tumour. Aggressive lesions may take on a globular appearance with scalloping or destruction of the cortex. When a benign medullary chondroma (enchondroma) undergoes malignant transformation, it is difficult to be sure that the lesion was not a slowly evolving sarcoma from the outset. Usually the progression involves contiguous bones, but occasionally multiple sites are affected. Occasionally, however, the process spreads to vital structures and the outcome is fatal. The highest incidence is in the fourth and fifth decades and men are affected more often than women. These tumours are slow-growing and are usually present for many months before being discovered. Although chondrosarcoma may develop in any of the bones that normally develop in cartilage, almost 50 per cent appear in the metaphysis of one of the long tubular bones, mostly in the lower limbs. Despite the relatively frequent occurrence of benign cartilage tumours in the small bones of the hands and feet, malignant lesions are rare at these sites. Chondrosarcomas take various forms, usually designated according to: (a) their location in the bone (central or peripheral); (b) whether they develop without precedent (primary chondrosarcoma) or by malignant change in a pre-existing benign lesion (secondary chondrosarcoma); and (c) the predominant cell type in the tumour. Exostoses of the pelvis and scapula seem to be more susceptible than others to malignant change, but perhaps this is simply because the site allows a tumour to grow without being detected and removed at an early stage. Xrays show the bony exostosis, often surmounted by clouds of patchy calcification in the otherwise unseen lobulated cartilage cap. A tumour that is very large and calcification that is very fluffy and poorly outlined are suspicious features, but the clearest sign of malignant change is a demonstrable progressive enlargement of an osteochondroma after the end of normal bone growth.
It is also helpful in determining prognosis concerning the natural course of the condition medications 5 songs purchase 10 mg haldol overnight delivery. The usual Special investigations Once the diagnosis is confirmed medicine 93 7338 purchase haldol 1.5 mg otc, investigations should be carried out to exclude generalized disorders known to be associated with osteonecrosis (see Chapter 6) treatment broken toe purchase haldol 5mg. Other conditions that have a sudden symptoms 16 dpo buy haldol 1.5 mg lowest price, painful onset and tenderness at the joint line are fracture of an osteoarthritic osteophyte, disruption of a degenerative meniscus, a stress fracture, pes anserinus bursitis and a local tendonitis. Resurfacing with osteochondral allografts has also been employed, with variable results. Because of loss of pain sensibility and proprioception, the articular surface breaks down and the underlying bone crumbles. Fragments of bone and cartilage are deposited in the hypertrophic synovium and may grow into large masses. Prognosis Symptoms and signs may stabilize and the patient be left with no more than slight distortion of the articular surface; or one of the condyles may collapse, leading to osteoarthritis of the affected compartment. The clinical progress depends on the radiographic size of the lesion, the ratio of size of the lesion to the size of the condyle (>40 per cent carries a worse prognosis) and the stage of the lesion (Patel et al. Clinical features the patient chiefly complains of instability; pain (other than tabetic lightning pains) is unusual. Radiologically the joint is subluxated, bone destruction is obvious and irregular calcified masses can be seen. Treatment Treatment is conservative in the first instance and consists of measures to reduce loading of the joint and analgesics for pain. Surgical options include arthroscopic debridement, Treatment Patients often seem to manage quite well despite the bizarre appearances. Clinical features Fresh bleeds cause pain and swelling of the knee, with the typical clinical signs of a haemarthrosis (see Chapter 5). There is a tendency to hold the knee in flexion and this may become a fixed deformity. X-rays Radiographic examination may show little abnormality, apart from local osteoporosis. In the elderly the injury is usually above the patella; in middle life the patella fractures; in young adults the patellar ligament can rupture. Tendon rupture sometimes occurs with minimal strain; this is seen in patients with connective tissue disorders (e. Treatment Both the haematologist and the orthopaedic surgeon should participate in treatment. Flexion deformity must be prevented by gentle physiotherapy and intermittent splintage. However, although replacement arthroplasty is feasible, this should be done only after the most searching discussion with the patient, where all the risks are considered, and only if a full haematological service is available. Avulsion of the quadriceps tendon from the upper pole of the patella is seen in the same group of people. The patient stumbles on a stair, catches his or her foot while walking or running, or may only be kicking a muddy football. It is generally ascribed to ossification of a haematoma following a tear of the medial ligament, though a history of injury is not always forthcoming. This condition was described independently by Sinding-Larsen in 1921 and Johansson in 1922. Sometimes, if the condition does not settle, calcification appears in the ligament (Medlar and Lyne, 1978). If rest fails to provide relief, the abnormal area is removed and the paratenon stripped (King et al. Although often called osteochondritis or apophysitis, it is nothing more than a traction injury of the apophysis into which part of the patellar tendon is inserted (the remainder is inserted on each side of the apophysis and prevents complete separation). Sometimes active extension of the knee against resistance is painful and x-rays may reveal fragmentation of the apophysis. Spontaneous recovery is usual but takes time, and it is wise to restrict such activities as cycling, jumping and soccer. Occasionally, symptoms persist and, if patience or wearing a back-splint during the day are unavailing, a separate ossicle in the tendon is usually responsible; its removal is then worthwhile. Conditions to be considered can be divided into four groups: swelling of the entire joint; swellings in front of the joint; swellings behind the joint; and bony swellings. X-rays are essential to see if there is a fracture; if there is not, then suspect a tear of the anterior cruciate ligament. If a ligament injury is suspected, examination under anaesthesia is helpful and may indicate the need for operation; otherwise a crepe bandage is applied and the leg cradled in a back-splint. The patient may get up when comfortable, retaining the back-splint until muscle control returns. If the appropriate clotting factor is available, the joint should be aspirated and treated as for a traumatic haemarthrosis. If the factor is not available, aspiration is best avoided; the knee is splinted in slight flexion until the swelling subsides. The organism is usually Staphylococcus aureus, but in adults gonococcal infection is almost as common. Aspiration reveals pus in the joint; fluid should be sent for bacteriological investigation, including anaerobic culture. The knee may need to be splinted for several days but movement should be encouraged and quadriceps exercise is essential. Aspiration will provide fluid which may look turbid, resembling pus, but it is sterile and microscopy (using polarized light) reveals the crystals. The more elusive disorders should be fully investigated by joint aspiration, synovial fluid examination, arthroscopy and synovial biopsy. Other signs, such as deformity, loss of movement or instability, may be present and x-ray examination will usually show characteristic features. The diagnosis will usually be obvious on arthroscopy and can be confirmed by synovial biopsy. There has been a resurgence of cases during the last ten years and the condition should be seriously 577 20 20. The ideal is to start antituberculous chemotherapy before joint destruction occurs. It presents usually as a painless lump behind the knee, slightly to the medial side of the midline and most conspicuous with the knee straight. The lump is fluctuant but the fluid cannot be pushed into the joint, presumably because the muscles compress and obstruct the normal communication. Occasionally the lump aches, and if so it may be excised through a transverse incision. However, recurrence is common and, as the bursa normally disappears in time, a waiting policy is perhaps wiser. The lump, which is usually seen in older people, is in the midline of the limb and at or below the level of the joint. The condition was originally described by Baker, whose patients were probably suffering from tuberculous synovitis. This is an uninfected bursitis due not to pressure but to constant friction between skin and bone. It is seen mainly in carpet layers, paving workers, floor cleaners and miners who do not use protective knee pads. Treatment consists of firm bandaging, and kneeling is avoided; occasionally aspiration is needed. Infection (possibly due to foreign body implantation) results in a warm, tender swelling. Pain and stiffness of the knee may precede the symptoms of peripheral arterial disease, so it is essential to examine any lump behind the knee for pulsation. A firm bandage is applied; the arthroscopic portals are often small enough not to require sutures. Reflex sympathetic dystrophy (which may resemble a low-grade infection during the weeks following arthroscopy) is sometimes troublesome.
Assumed Parametric Data Continuous data such as body weights medicine net cheap haldol 5mg fast delivery, blood-cell counts medicine gif order haldol 10 mg line, etc treatment 7 february buy haldol 10mg lowest price. Comparison of two groups or if the variance in one or more groups=0 (no variation within group) Comparison of three or more groups all with some variation within group Categorical (Quantal) Data Frequency data such as mortalities medications bipolar generic haldol 5 mg visa, pathology findings, etc. For trend analysis of parametric data, Jonckheere test for monotonic trend can be used. The ratio of the dissociation rate constant to the association rate constant is an alternative way to determine the equilibrium dissociation constant. This relationship is only valid for first order processes or pseudo first order processes where all but one component is constant over time. Alternatively, if the energy difference between reactants and products at equilibrium is known, Equation 2 can be used to determine the equilibrium constant. Calorimetric measurements can be used to measure G0 values associated with binding interactions. Y= [L] K D + [L] (4) An alternative means of expressing the Langmuir binding isotherm is in terms of fractional receptor occupancy (Y). The ordinate scale is the same for each receptorligand interaction regardless of the magnitude of Bmax. The only difference is the position of the curve, right or left, which is a measure of the affinity. For this reason it is useful as a means of displaying data for graphic presentation. With the wide availability of computer programs for nonlinear fitting, Equation 5 is now of only limited value for evaluating binding parameters. Multiple binding sites for the same ligand on a single receptor will produce convex curvature while binding site heterogeneity can produce convex, concave, or no curvature. The value of this transformation of Equation is in graphic analysis for nonlinearity. Equation 7 is useful for the same analyses as the Rosenthal-Scatchard equation and it has the additional advantage of providing the values of the binding parameters directly rather than as reciprocals or in combinations. However, since nonlinear fitting to the Langmuir binding isotherm, as a means of evaluating binding parameters, is now widely available this feature of the equation is of diminished importance. When the maximum physiological effect for a receptor system is known, Equation 10 can be employed to evaluate the relative intrinsic activity of any given agonist. The Hill equation also detects multiple noninteracting binding sites for the same ligand with different affinities on the same receptor. A Hill coefficient (n) greater than 1 is an indication of either cooperativity of binding or multiple noninteracting binding sites on the same receptor. When n is greater than 1 the Scatchard plot will exhibit pronounced convex curvature. When these sites interact, or when they have different affinities, they will produce a downward curving Hill plot. When such behavior is noted, this equation can be used to evaluate the relative contributions of the two binding sites to the overall binding and effect. This equation, like Equation 13, is useful for evaluation of the relative contributions of the two binding sites to the overal binding and effect. This equation, in combination with Equation 3, is useful for the evaluation of the inhibition constant employing nonlinear fitting methods. If the inhibitor changes only the slope, and not the abscissal intercept, this indicates that the inhibition is competitive. Alternatively, it is useful for calculating the competitive inhibitor concentration when a known increase in agonist concentration is necessary to maintain the same level of effect. This equation is useful for the evaluation of the inhibition constant employing nonlinear fitting methods. This equation is useful for the graphic analysis of simple noncompetitive inhibition. This equation is useful for the evaluation of the effect of agonist binding on the inhibition constant employing nonlinear fitting methods. This equation is useful for the graphic analysis of heterotropic-cooperative noncompetitive inhibition. If the inhibitor changes both the slope and the abscissal intercept, this indicates that the inhibition is noncompetitive. If the intersection of the lines is above or below the ordinate, this indicates that the binding of substrate influences the binding of inhibitor and the binding of inhibitor influences the binding of substrate. When this is true, the mechanism is heterotropic-cooperative noncompetitive inhibition. Thus, allosteric competitive inhibition can be distinguished from simple competitive inhibition by employing very high inhibitor concentrations. Y= 1 K D2 K S1 K S2 1 + [S] + 1 + [S] [L] (23) Equation 23 is a modified version of the Langmuir binding isotherm which takes into consideration the contribution of a simple noncompetitive stimulator. This equation is useful for the evaluation of the stimulation constant employing nonlinear fitting methods. An alternative way to think about a stimulator is that it can also represent, under some circumstances, a second agonist at the receptor where both agonists must bind before a physiological effect can be produced. This equation is useful for the graphic analysis of simple noncompetitive stimulation. If the stimulator changes both the slope and the abscissal intercept, this indicates that the stimulation is noncompetitive. This equation is useful for the evaluation of the inhibition constant using nonlinear fitting methods. If the inhibitor changes the abscissal intercept without affecting the slope, this indicates that the inhibition is uncompetitive. Uncompetitive inhibition can, under some circumstances, represent a special case of heterotropic-cooperative noncompetitive inhibition where binding of substrate increases the affinity of binding of the inhibitor from near zero to its final value. A number of special conditions and assumptions are involved in the derivation of the Michaelis-Menten equation which are not necessary for the Langmuir binding isotherm. If these conditions and assumptions are not met, the Michaelis-Menten equation is not valid for the analysis of enyme kinetic data. V= Vmax [S1][S2] K D1 K M2 + K M1 [S2] + K M2 [S1] + [S1][S2] (28) Equation 28 is a modified version of the Michaelis-Menten equation for enzyme reactions that require two substrates to add to the enzyme before any product formation can occur. This equation is useful for analyzing kinetic parameters when it is not feasible to hold one substrate at saturation. V= Vmax [S1][S2] K M1 [S2] + K M2 [S1] + [S1][S2] (29) Equation 29 is a modified version of the Michaelis-Menten equation for enzyme reactions that exhibit a ping-pong mechanism. This reaction alters the enzyme such that it can then combine with the second substrate and convert it to product. Molarity (M) = Number of moles of solute Liter of solution Grams of chemical Where: Number of moles = Molecular weight Number of moles of solute Kilogram of solution 2. Examples include gas:liquid (foam); solid:gas (aerosol); gas:solid (foamed plastic); liquid:gas (fog); liquid:liquid (emulsion); solid:liquid (paint); solid:solid (carbon black in rubber). Emulsion A system containing two or more immiscible liquids in which one is dispersed in the form of very small globules throughout the other. Mixture A mutual incorporation of two or more substances without chemical union, the physical characteristics of each of the components being retained. The components may or may not be uniformly dispersed and can usually be separated by mechanical means. Mixtures can be broadly grouped into two classes: mechanical mixtures which consist of a mixture of particles or masses distinguishable as such under a microscope or by other methods; physical mixtures consisting of a more intimate mixture of molecules such as with gases and many solutions. Solubility the ability or tendency of one substance to blend uniformly with another. Usually, liquids and gases are said to be miscible in other liquids and gases rather than soluble. Solution A uniformly dispersed mixture at the molecular or ionic level of one or more substances (the solute) in one or more other substances (the solvent). Suspension the dispersion through a liquid of very small particles (solid, semisolid, or liquid) of a size large enough to be detected by optical means.
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