ATI LPN
LPN Pharmacology Practice Questions
1. The client needs instruction on using a metered-dose inhaler (MDI). Which instruction should be given?
- A. Inhale the medication and then exhale immediately
- B. Exhale fully, then place the inhaler in your mouth and inhale deeply while pressing the canister
- C. Take two short breaths before inhaling the medication
- D. Hold your breath for 5 seconds after inhaling the medication
Correct answer: B
Rationale: The correct technique for using a metered-dose inhaler (MDI) involves exhaling fully before inhaling deeply while pressing the canister to ensure effective delivery of the medication. Choice A is incorrect as exhaling should precede inhaling. Choice C is incorrect as taking two short breaths is not part of the correct technique. Choice D is incorrect as there is no need to hold the breath for a specific time after inhaling the medication.
2. The client with a history of heart failure is receiving digoxin (Lanoxin). Which electrolyte imbalance increases the risk of digoxin toxicity?
- A. Hypernatremia
- B. Hypercalcemia
- C. Hypokalemia
- D. Hypomagnesemia
Correct answer: C
Rationale: Hypokalemia increases the risk of digoxin toxicity as low potassium levels enhance the effects of digoxin on the heart, leading to toxicity and potential adverse effects. Hypernatremia (Choice A) is not directly associated with an increased risk of digoxin toxicity. Hypercalcemia (Choice B) does not increase the risk of digoxin toxicity. Hypomagnesemia (Choice D) can contribute to digoxin toxicity, but hypokalemia has a more significant impact on increasing the risk.
3. The healthcare provider is reinforcing dietary instructions to a client with coronary artery disease who has been prescribed a low-cholesterol diet. The healthcare provider should advise the client to choose which food item?
- A. Whole milk
- B. Oatmeal with fresh fruit
- C. Fried chicken
- D. Bacon and eggs
Correct answer: B
Rationale: Oatmeal with fresh fruit is the correct choice for a client with coronary artery disease on a low-cholesterol diet. Oatmeal is a heart-healthy option that is low in cholesterol and saturated fats. Fresh fruits are also a good source of essential nutrients and fiber. Choices A, C, and D are not suitable for a low-cholesterol diet. Whole milk, fried chicken, bacon, and eggs are high in cholesterol and saturated fats, which can be detrimental to individuals with coronary artery disease.
4. A client is scheduled for a coronary artery bypass graft (CABG) surgery. The nurse should prepare the client by reinforcing information about which post-operative care measure?
- A. You will be on bed rest for the first 48 hours after surgery.
- B. You will be encouraged to cough and deep breathe frequently.
- C. You will be discharged within 24 hours if no complications arise.
- D. You will not be able to eat or drink for 24 hours after surgery.
Correct answer: B
Rationale: Encouraging the client to cough and deep breathe frequently is essential post-operative care to prevent respiratory complications such as atelectasis and pneumonia after CABG surgery. Choices A, C, and D are incorrect because post-CABG surgery, early mobilization is encouraged to prevent complications such as deep vein thrombosis (DVT) and pneumonia. Discharge within 24 hours is unlikely after CABG surgery, and early oral intake is encouraged to promote recovery and prevent complications.
5. 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.
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