Nursing Elites

1. The nurse is caring for a patient who will receive 10% calcium gluconate to treat a serum potassium level of 5.9 mEq/L. The nurse performs a drug history prior to beginning the infusion. Which drug taken by the patient would cause concern?

• A. Digitalis
• B. Hydrochlorothiazide
• C. Hydrocortisone
• D. Vitamin D

Correct answer: A

Rationale: Calcium gluconate is administered to treat hyperkalemia by reducing myocardial irritability. When given to a patient taking digitalis, it can lead to digitalis toxicity. Digitalis and calcium gluconate both affect cardiac function, and their concomitant use can potentiate adverse effects. Hydrochlorothiazide, Hydrocortisone, and Vitamin D may impact potassium levels, but they do not interact with calcium gluconate in a way that would cause concern for toxicity.

2. The healthcare provider is caring for a patient who is receiving an intravenous antibiotic. The patient has a serum drug trough of 1.5 mcg/mL. The normal trough for this drug is 1.7 mcg/mL to 2.2 mcg/mL. What will the healthcare provider expect the patient to experience?

• A. Inadequate drug effects
• B. Increased risk of superinfection
• C. Minimal adverse effects
• D. Slowed onset of action

Correct answer: A

Rationale: A serum drug trough level below the normal range (1.7 mcg/mL to 2.2 mcg/mL) indicates that the medication concentration is insufficient to provide therapeutic effects, leading to inadequate drug effects. A low trough level does not directly correlate with an increased risk of superinfection, minimal adverse effects, or a slowed onset of action, as these are more related to the drug's concentration within the therapeutic range.

3. A client has been scheduled for magnetic resonance imaging (MRI). For which of the following conditions, a contraindication to MRI, does the nurse check the client’s medical history?

• A. Pancreatitis
• B. Pacemaker insertion
• C. Type 1 diabetes mellitus
• D. Chronic airway limitation

Correct answer: B

Rationale: The correct answer is B: Pacemaker insertion. Patients with metal devices or implants are contraindicated for MRI. These include pacemakers, orthopedic hardware, artificial heart valves, aneurysm clips, and intrauterine devices. These metal objects can be affected by the strong magnetic field of the MRI, leading to serious risks for the patient. Pancreatitis (choice A), Type 1 diabetes mellitus (choice C), and chronic airway limitation (choice D) are not contraindications to MRI based on the presence of metal objects. Therefore, the nurse should be particularly concerned about pacemaker insertion when reviewing the client's medical history prior to an MRI.

4. A young female client prescribed amoxicillin (Amoxil) for a urinary tract infection is being taught by a nurse. Which statement should the nurse include in this client’s teaching?

• A. Use a second form of birth control while taking this medication.
• B. You will experience increased menstrual bleeding while on this medication.
• C. You may experience an irregular heartbeat while on this medication.
• D. Watch for blood in your urine while taking this drug.

Correct answer: A

Rationale: The correct statement for the nurse to include in the teaching is to advise the client to use a second form of birth control while taking amoxicillin. Penicillin, like amoxicillin, may reduce the effectiveness of estrogen-containing contraceptives, making it important to use additional contraceptive measures. The incorrect choices are B, C, and D. Increased menstrual bleeding, irregular heartbeat, or blood in the urine are not common side effects associated with amoxicillin use for a urinary tract infection.

5. The nurse is preparing to administer doses of hydrochlorothiazide (HydroDIURIL) and digoxin (Lanoxin) to a patient who has heart failure. The patient reports having blurred vision. The nurse notes a heart rate of 60 beats per minute and a blood pressure of 140/78 mm Hg. Which action will the nurse take?

• A. Administer the medications and request an order for serum electrolytes.
• B. Give both medications and evaluate serum blood glucose frequently.
• C. Hold the digoxin and notify the provider.
• D. Hold the hydrochlorothiazide and notify the provider.

Correct answer: C

Rationale: In this scenario, the patient is experiencing symptoms of digoxin toxicity, such as blurred vision and bradycardia. When thiazide diuretics like hydrochlorothiazide are taken with digoxin, the patient is at risk of digoxin toxicity due to the potential for thiazides to cause hypokalemia. Therefore, the correct action for the nurse to take is to hold the digoxin and notify the provider. Administering the medications without addressing the potential toxicity could worsen the patient's condition. Requesting serum electrolytes (Choice A) may be necessary but holding the digoxin takes priority. Evaluating serum blood glucose (Choice B) is not relevant to the current situation. Holding hydrochlorothiazide (Choice D) is not the best option as the primary concern is the digoxin toxicity that needs to be addressed promptly.

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