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Venous Thromboembolism
Prolonged immobilization (>8 hours) increases the risk of lower extremity deep vein thrombosis (DVT), particularly in travelers with risk factors for thrombosis. Nevertheless, flight-related symptomatic pulmonary embolism is rare.To minimize the risk, travelers should be advised to walk around or exercise while sitting by flexing/extending ankles and knees, to drink plenty of fluids and to avoid alcohol. Compression stockings can decrease the risk of asympto- matic DVT. One study found that giving a single dose of a low-molecular-weight heparin or aspirin as pro- phylaxis to travelers at high risk (past history of thrombosis, obesity, malignancy, increased platelets) reduced the incidence of DVT, but there is little evidence supporting this approach.
Ovipary, Vivipary and Ovovivipary In each case of external and in some cases of internal fertilisation, development of the fertilized egg (zygote) occurs outside the mother's
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Test for Venous Function Make patient stand, apply a tourniquet at mid-thigh firmly enough to occlude the superficial veins, but not the deep veins or the arteries.
Define the Term Epimerism? In addition to D and L isomerism sugars also exhibit epimerism. Hexoses that differ from each other as a result of variation of H and OH on carbons 2
We now understand that mutations that cause the inhibition of apoptosis are found in tumours. Because proliferation itself is not induced by the inhibition of apoptosis, explain ho
Define the Fats requirement to avoid underweight problem? We know that fats are concentrated source of energy (1g = 9 Kcals). Fats are capable of increasing the energy val
origin of species
The fact that some pure solutions of hydrocarbons do not readily evaporate at room temperature is a result of Select one: a. London dispersion forces. b. The hydrophobic effe
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