31. Question: Causes of hyperkalemia include:

32. Question: When a patient has small, vesicular lesions that last between 10 and 20 days, which sexually transmitted infection is suspected?

33. Question: An individual is more susceptible to infections of mucous membranes when he or she has a seriously low level of which immunoglobulin antibody?

34. Question: Which of the following is classified as a megaloblastic anemia?

35. Question: Blood vessels of the kidneys are innervated by the:

36. Question: Which statement best describes a Schilling test?

37. Question: Which laboratory test is considered adequate for an accurate and reliable diagnosis of gonococcal urethritis in a symptomatic man?

38. Question: Continuous increases in left ventricular filing pressures result in which disorder?

39. Question: What substance stimulates renal hydroxylation in the process of producing vitamin D?

40. Question: What are the abnormalities in cytokines found in children with cystic fibrosis (CF)?