Which of the following is the most appropriate next test in the evaluation of this patient? ... Empiric unfractionated heparin therapy is begun. Which of the following is the best test to confirm the diagnosis in this patient?
A. aPTT mixing study. B. Direct antiglobulin (Coombs) test. C. Intravenous immune globulin. ... A positive test result would not explain the presence of schistocytes on the peripheral blood smear.
Exercise echocardiography may be useful in patients with chronic severe mitral regurgitation to evaluate the pulmonary artery pressure during exercise by Doppler imaging, but this diagnostic test does not offer additional
The following cases and commentary, which address infectious diseases, are excerpted from ACP's Medical Knowledge Self-Assessment Program (MKSAP14).
On a six-minute walk test, oxygen saturation at rest and after exercise is 98% and 93%, respectively. ... Which diagnostic test would be most useful in diagnosing the cause of the patient's volume status?
The following cases and commentary, which address opioid therapy, are excerpted from ACP's Medical Knowledge Self-Assessment Program (MKSAP14).
A. Advise against the flight. B. Schedule a hypoxic inhalation test to simulate an altitude of 8,000 ft. ... O. 2. at 8,000 feet will fall below 50 mm Hg and therefore whether additional evaluation with the hypoxic inhalation test is needed.
Which of the following is the best test to assess the patient's mental status?
Cold reactive autoantibodies are IgM antibodies and are not a cause of a positive IgG antibody test. ... In this case, the direct antibody test would be positive for complement but not IgG.