Study guides, Class notes & Summaries

QUESTIONS AND ANSWERS

Which characteristic describes antithrombin (AT)? A. It is synthesized in megakaryocytes B. It is activated by protein C C. It is a cofactor of heparin D. It is a pathological inhibitor of coagulation Answer C. It is a cofactor of heparin C Antithrombin is heparin cofactor and it is the most important naturally occurring physiological inhibitor of blood coagulation. It represents about 75% of antithrombotic activity and is an α2-globulin made by the liver. Which laboratory test is a...

Which statement regarding renal function is true a. glomeruli are far more permeable to H2O and salt than other capillaries b. the collecting tubule reabsorbs sodium and secretes potassium in response to antidiuretic hormone c. the collecting tubule is permeable to H2O only in the presence of aldosterone d. the thick ascending limb is highly permeable to H2O and urea - Answer a which statement regarding normal salt and H2O handling by the nephron is correct a. the ascending limb of the t...

which of the following biochemical processes is promoted by insulin a. glycogenolysis b. gluconeogenesis c. lipolysis d. uptake of glucose by cells Answer d which of the following hormones promotes hyperglycemia a. calcitonin b. growth hormone c. aldosterone d. renin Answer b which of the following is characteristic of type 1 diabetes mellitus a. requires an oral glucose tolerance test for diagnosis b. is the most common form of diabetes mellitus c. usually occurs after age 40 ...

Which of the following hormones is often decreased by approximately 25% in the serum of pregnant women who have a fetus with Down Syndrome? A. estriol (E3) B. human chorionic gonadotropin (hCG) C. progesterone D. estradiol (E2) Answer A The syndrome of inappropriate antidiuretic hormone secretion (SIADH) causes: A. low serum vasopressin B. hypernatremia C. urine osmolality to be lower than plasma D. low serum electrolytes Answer D Select the hormone which when elevated is associate...