Nokea
A home care nurse visits a client recently diagnosed with diabetes mellitus who is taking Humulin NPH insulin daily. The client asks the nurse how to store the unopened vials of insulin. The nurse tells the client to:
- A. Freeze the insulin.
- B. Refrigerate the insulin.
- C. Store the insulin in a dark, dry place.
- D. Keep the insulin at room temperature.
Correct Answer: B
Rationale: Insulin in unopened vials should be stored under refrigeration until needed. Vials should not be frozen. When stored unopened under refrigeration, insulin can be used up to the expiration date on the vial. Options 1, 3, and 4 are incorrect.
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Chlorpromazine can block following receptors EXCEPT:
- A. Dopamine
- B. Beta adrenergic
- C. Alpha adrenergic
- D. Muscarinic
Correct Answer: B
Rationale: Chlorpromazine, a typical antipsychotic, blocks dopamine, alpha-adrenergic, and muscarinic receptors but has minimal effect on beta-adrenergic receptors, which are not its primary target.
Which of the following are poorly perfused tissues?
- A. Heart
- B. Brain
- C. Liver
- D. Kidneys
Correct Answer: B
Rationale: This appears to be a trick question; heart, brain, liver, and kidneys are well-perfused. Assuming intent was poorly perfused, none fit, but B (Brain) is least correct here as it's well-perfused.
The bronchodilator of choice for patients taking propranolol is:
- A. Albuterol
- B. Pirbuterol
- C. Formoterol
- D. Ipratropium
Correct Answer: D
Rationale: Ipratropium , an anticholinergic, avoids beta-blockade interference from propranolol, unlike beta-agonists .
Which of the following is an adverse event of glucocorticoids:
- A. Arterial hypotension
- B. Hyponatremia
- C. Hypoglicemia
- D. Facilitate the development of infections
Correct Answer: D
Rationale: Glucocorticoids suppress immunity, increasing infection risk due to reduced inflammatory and immune responses.
The patient is taking a 2-mg dose of ropinerol XR. The drug has a half-life of 12 hours. How long will it be before only 0.25 mg of this drug remains in the patient's system?
- A. 24 hours
- B. 36 hours
- C. 48 hours
- D. 60 hours
Correct Answer: B
Rationale: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to half of the peak level it previously achieved. At 12 hours there will be 1 mg of the drug available to the body. At 24 hours there will be 0.5 mg, at 36 hours there will be 0.25 mg, at 48 hours there will be 0.125 mg, and at 60 hours there will be 0.0625 mg.