Question

44. 12-year-old, recently diagnosed with asthma, has been prescribed a corticosteroid to be administered by metered-dose inhaler. This drug achieves a therapeutic effect by which means?

a. By increasing the number of beta-adrenergic receptors

b. By increasing muscle tone in the smooth muscle of the trachea

c. By increasing the permeability of the alveolar membrane

d. By increasing the number of binding sites on erytghrocytes

45. The nurse should be aware that ranitidine achieves a therapeutic effect by which mean?

a. Raising the pH of gastric secretions

b. Inhibiting the secretion of gastric acid

c. Binding to proton pumps

d. Decreasing gastric motility

46. An older adult client with risk factors for thrombophlebitis is to be administered heparin 5000 units subcutaneously. The heparin vial is labeled 10,000 units/mL. How many milliliters will the nurse administered to the client?

a. 50 mL

b. 1.5 mL

c. 5 mL

d. 0.5 mL

47. The health care provider orders potassium chloride 40 mEq to be added to the client’s IV solution. The vial reads 10 mEq/5 mL. How many millimeters will be added to the IV solution?

a. 0.25 mL

b. 20 mL

c. 200 mL

d. 40 mL

Answer 1

Answer: (A) Number of beta adrenergic receptors.

( Corticosteroid increases the number of beta adrenergic receptor and it doesn't affect the permeability of alveolar membrane.)

Answer:(B) Inhibiting the secretion of gastric acid

( The mode of action of ranitidine is decreasing the secretion of gastric acid.)

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