Nokea
Which is a 5HT-receptor agonist?
- A. Ondansetron
- B. Ketanserine
- C. Sumatriptan
- D. Risperidone
Correct Answer: C
Rationale: Sumatriptan is a 5-HT1D agonist used in migraine.
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Monitoring for a patient being prescribed iron for iron deficiency anemia includes:
- A. Reticulocyte count 1 week after therapy is started
- B. Complete blood count every 2 weeks throughout therapy
- C. Hemoglobin level at 1 week of therapy
- D. INR weekly throughout therapy
Correct Answer: A
Rationale: Reticulocyte count at 1 week assesses iron therapy response; CBC or hemoglobin checks are later, and INR is irrelevant.
The nursing students are learning about the half-life of drugs. A student asks the instructor to explain half-life. What is the instructor's best response?
- A. 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.
- B. Half-life is the amount of time it takes for the drug to be metabolized by the body.
- C. Half-life is the amount of time it takes for half of the drug to reach peak level in the body.
- D. Half-life of a drug is the time it takes for the drug to reach half its potential peak level in the body.
Correct Answer: A
Rationale: The half-life of a drug is the time it takes for the amount of drug in the body to decrease to half the peak level it previously achieved. Therefore Options B, C, and D are not correct.
Tick the substance which changes the activity of an effector element but doesn't belong to second messengers:
- A. cAMP
- B. cGMP
- C. G-protein
- D. Calcium ions
Correct Answer: C
Rationale: G-protein is a transducer, not a second messenger, unlike cAMP, cGMP, and calcium.
When comparing angiotensin-converting enzyme (ACE) and angiotensin II receptor blocker (ARB) medications, which of the following holds true?
- A. Both have major issues with a dry, irritating cough
- B. Both contribute to some retention of potassium
- C. ARBs have a stronger impact on hypertension control than ACE medications
- D. ARBs have stronger diabetes mellitus renal protection properties than ACE medications
Correct Answer: B
Rationale: Both ACEIs and ARBs cause potassium retention due to reduced aldosterone.
The American Dietetic Association recommends pregnant women take a supplement including:
- A. 1,000 IU daily of vitamin D
- B. 2.4 mcg/day of vitamin B12
- C. 600 mcg/day of folic acid
- D. 8 mg/day of iron
Correct Answer: C
Rationale: 600 mcg/day of folic acid is recommended during pregnancy to prevent neural tube defects.