Articles on Medical Diseases and Conditions

Entries Tagged ‘Laboratory diagnosis’

Cytomegalovirus (CMV)

CMV is part of the herpesvirus group (herpes simplex, CMV, Epstein-Barr, and varicella-zoster). CMV infection is widespread, since serologic evidence of infection varies from about 30% to over 90% between different geographic areas and population groups. In general, there is lower incidence in Western European nations and many areas of the United States. The two […]

Enteric Bacilli (Enterogacteriacae)

Enteric bacilli form a large family of gramegative rods (see Table 37-6). As their name implies, most are found primarily in the intestinal tract. These include species such as Salmonella, Shigella, Escherichia coli, Enterobacter, Klebsiella, Proteus, and several others (see Table 37-6). Many are normal inhabitants and cause disease only if they escape to other […]

Anticoagulant Systems

Coumarin anticoagulants Liver cells produce certain coagulation factors that require vitamin K for synthesis into a form that can be activated. Drugs of the coumarin family inhibit vitamin K utilization by liver cells. The vitamin K–dependent factors, listed in order of decreasing sensitivity to coumarin, are factor VII, factor IX, factor X, and prothrombin. Factor […]