Nursing Elites

1. The healthcare provider assesses a client who has been prescribed furosemide (Lasix) for cardiac disease. Which electrocardiographic change would be a concern for a client taking a diuretic?

• A. Tall, spiked T waves
• B. A prolonged QT interval
• C. A widening QRS complex
• D. Presence of a U wave

Correct answer: D

Rationale: The presence of a U wave is often associated with hypokalemia, a possible side effect of diuretic therapy like furosemide. Hypokalemia can lead to U wave formation on an electrocardiogram, making the presence of U waves a concerning finding in clients taking diuretics. Tall, spiked T waves are typically seen in hyperkalemia, not hypokalemia. A prolonged QT interval is more commonly associated with conditions like Long QT syndrome or certain medications, not specifically with diuretics. A widening QRS complex is usually seen in conditions affecting the conduction system of the heart, such as bundle branch blocks, rather than being directly related to diuretic use.

2. A client has a new prescription for rifampin. Which of the following instructions should the nurse include?

• A. Take the medication with food.
• B. Expect red-orange discoloration of body fluids.
• C. Monitor for signs of hyperglycemia.
• D. Avoid consuming dairy products.

Correct answer: B

Rationale: The correct answer is to inform the client to expect red-orange discoloration of body fluids when taking rifampin. Rifampin is known to cause this side effect, which is harmless but can be surprising to patients. It is important for the nurse to educate the client about this expected change to prevent unnecessary concern or alarm. Monitoring for hyperglycemia is not directly related to rifampin, and taking the medication with food or avoiding dairy products are not specific instructions for this medication.

3. 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.

4. 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.

5. The client is receiving intravenous heparin for the treatment of a pulmonary embolism. Which medication should the nurse ensure is readily available?

• A. Protamine sulfate
• B. Vitamin K
• C. Calcium gluconate
• D. Magnesium sulfate

Correct answer: A

Rationale: Protamine sulfate is the antidote for heparin, used to reverse its anticoagulant effects. It should be readily available in case of bleeding complications, as it can rapidly neutralize the effects of heparin and prevent excessive bleeding. Vitamin K is used to reverse the effects of warfarin, not heparin (Choice B). Calcium gluconate is used to treat calcium deficiencies, not indicated for heparin therapy (Choice C). Magnesium sulfate is used for conditions like preeclampsia and eclampsia, not for reversing heparin effects (Choice D).

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