ATI LPN
LPN Pharmacology Practice Questions
1. A client with a history of angina pectoris reports chest pain after climbing stairs. What should be the nurse's first action?
- A. Administer oxygen.
- B. Administer nitroglycerin.
- C. Sit the client down and rest.
- D. Check the client's blood pressure.
Correct answer: C
Rationale: The correct action for a client experiencing anginal pain, like chest pain after climbing stairs, is to sit the client down and have them rest. Resting reduces myocardial oxygen demand, which can help relieve anginal pain. Administering oxygen or nitroglycerin may be appropriate interventions after the client has been seated and rested. Checking the client's blood pressure is important but not the immediate priority when a client is experiencing anginal pain. Therefore, the first action should be to sit the client down and allow them to rest.
2. The nurse is caring for a client with hypertension who is prescribed a thiazide diuretic. The nurse should check which parameter before administering the medication?
- A. Serum potassium level
- B. Blood pressure
- C. Heart rate
- D. Serum sodium level
Correct answer: B
Rationale: Before administering a thiazide diuretic to a client with hypertension, the nurse should check the blood pressure. Thiazide diuretics are prescribed to lower blood pressure, so assessing the client's blood pressure prior to administration helps to monitor the effectiveness of the medication and to ensure the client's safety. Checking the serum potassium level (Choice A), heart rate (Choice C), or serum sodium level (Choice D) are also important parameters in the care of a client on a thiazide diuretic, but the priority assessment before administering the medication is the blood pressure to evaluate the drug's effectiveness in managing hypertension.
3. A client with chronic heart failure is being discharged with a prescription for digoxin (Lanoxin). Which instruction should the nurse reinforce?
- A. Take the medication at the same time each day.
- B. Avoid foods high in potassium.
- C. Skip a dose if you feel well.
- D. Take the medication on an empty stomach.
Correct answer: A
Rationale: Taking digoxin at the same time each day is essential to maintain a consistent blood level of the medication. This consistency helps optimize the therapeutic effects of digoxin in managing chronic heart failure. Deviating from the scheduled time could lead to fluctuations in drug levels, affecting its effectiveness and potentially causing harm. Choices B, C, and D are incorrect because avoiding potassium-rich foods, skipping doses when feeling well, and taking the medication on an empty stomach are not relevant or appropriate instructions for a client prescribed digoxin.
4. A client has a new prescription for albuterol. Which of the following instructions should the nurse include?
- A. Use the inhaler every 4 hours around the clock.
- B. Shake the inhaler well before use.
- C. Rinse your mouth with water after each use.
- D. Use the inhaler while lying down.
Correct answer: B
Rationale: Shaking the inhaler well before use is crucial as it helps ensure proper mixing of the medication, which is essential for effective delivery of the drug to the lungs. This step is important for optimal therapeutic effects of albuterol inhalation. Choices A, C, and D are incorrect. Using the inhaler every 4 hours around the clock without specifying a maximum number of doses can lead to overuse. Rinsing the mouth with water after each use is typically advised for inhaled corticosteroids to reduce the risk of oral thrush, not for albuterol. Using the inhaler while lying down is not recommended as it may lead to improper medication delivery to the lungs.
5. The client with chronic stable angina is prescribed a beta blocker. The nurse is reinforcing instructions. What instruction should the nurse include?
- A. Take the medication with a meal.
- B. Report a pulse rate below 60 beats per minute.
- C. Discontinue the medication if dizziness occurs.
- D. Avoid drinking grapefruit juice.
Correct answer: B
Rationale: The correct instruction for the nurse to include is to advise the client to report a pulse rate below 60 beats per minute. Beta blockers are known to lower heart rate, and a pulse rate below 60 beats per minute may indicate bradycardia, a condition that requires medical attention. Option A, 'Take the medication with a meal,' is incorrect because beta blockers don't necessarily need to be taken with food. Option C, 'Discontinue the medication if dizziness occurs,' is incorrect because abrupt cessation of beta blockers can lead to rebound hypertension and other adverse effects. Option D, 'Avoid drinking grapefruit juice,' is unrelated to beta blockers' mechanism of action or side effects.
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