Prescribers have been shown to override a medication alert about a patient's allergies when:
- A. The history showed that the patient had tolerated the medication in the past
- B. The benefit outweighed the risk
- C. The medication was therapeutically appropriate and needed
- D. All of the above
Correct Answer: D
Rationale: Prescribers may override alerts if past tolerance, benefit-risk balance, or therapeutic need justifies it.
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When documenting, which of the following would be appropriate for the nurse to use at accredited health care organizations? Select one that does not apply.
- A. IU
- B. 2mg
- C. 0.2 mg
- D. Units
Correct Answer: A
Rationale: Always use a leading zero when writing decimals (i.e., 0.2 mg, not .2 mg) and leave off the trailing zero (i.e., 2 mg, not 2.0 mg). Always write out units, international units, and daily; do not use U, IU, or QD.
A doctor orders 250 mL of IV fluid to be infused over 1 hour using microdrip tubing (60 gtt/mL). What is the flow rate in drops per minute?
- A. 100 gtt/min
- B. 120 gtt/min
- C. 150 gtt/min
- D. 250 gtt/min
Correct Answer: D
Rationale: Flow rate = (250 mL 60 gtt/mL) ÷ (1 60) = 15,000 ÷ 60 = 250 gtt/min, matching microdrip where mL/hr = gtt/min.
A nurse is providing teaching to a client who is starting Simvastatin. Which of the following information should the nurse include in the teaching?
- A. Take this medication in the evening.
- B. Change position slowly when rising from a chair.
- C. Maintain a steady intake of green leafy vegetables.
- D. Consume no more than 1 L/day of fluid
Correct Answer: A
Rationale: Simvastatin is taken in the evening when cholesterol synthesis peaks.
Isosorbide dinitrate is prescribed for a patient with chronic stable angina. This drug is administered twice daily, but the schedule is 7 a.m. and 2 p.m. because:
- A. It is a long-acting drug with potential for toxicity.
- B. Nitrate tolerance can develop.
- C. Orthostatic hypotension is a common adverse effect.
- D. It must be taken with milk or food.
Correct Answer: B
Rationale: A nitrate-free interval (e.g., after 2 p.m.) prevents tolerance.
Hepatitis B vaccine is contraindicated in patients who:
- A. Were born after less than 32 weeks gestation (give first dose at age 6 months)
- B. Are pregnant
- C. Are on hemodialysis
- D. Are allergic to yeast
Correct Answer: D
Rationale: Hepatitis B vaccine is contraindicated in yeast allergy (it's yeast-derived); prematurity , pregnancy , or dialysis are not.