Nursing Elites

1. Before administering a calcium channel blocker to a client with hypertension, what parameter should the nurse check?

• A. Serum calcium level
• B. Apical pulse
• C. Blood pressure
• D. Respiratory rate

Correct answer: C

Rationale: Before administering a calcium channel blocker to a client with hypertension, the nurse should check the client's blood pressure. Calcium channel blockers are prescribed to lower blood pressure, so it is essential to assess the current blood pressure to ensure safe administration and monitor the medication's effectiveness. Checking the serum calcium level (Choice A) is not necessary before administering a calcium channel blocker, as it does not directly impact the drug's action. Monitoring the apical pulse (Choice B) is important for other types of medications like beta-blockers, not specifically for calcium channel blockers. Assessing the respiratory rate (Choice D) is not directly related to administering calcium channel blockers for hypertension.

2. A client with a history of myocardial infarction (MI) is being discharged with a prescription for nitroglycerin sublingual tablets. Which instruction should the nurse reinforce?

• A. Store the tablets in a cool, dry place away from light.
• B. Take a tablet every 5 minutes if chest pain occurs.
• C. Place the tablets under the tongue for sublingual absorption.
• D. Take the tablets without water for faster effect.

Correct answer: A

Rationale: The correct answer is A. Nitroglycerin tablets are light and moisture-sensitive, so they should be stored in a cool, dry place away from light to maintain their effectiveness. Option B advises taking a tablet every 5 minutes, which may lead to overdose as this frequency is too high. Option C emphasizes the correct administration route for sublingual tablets. Option D is incorrect as water is not needed for the tablets to take effect.

3. The LPN/LVN is assisting in the care of a client with chronic heart failure who is receiving digoxin (Lanoxin). Which sign should the nurse monitor for that could indicate digoxin toxicity?

• A. Bradycardia
• B. Tachycardia
• C. Hypertension
• D. Hyperglycemia

Correct answer: A

Rationale: Bradycardia is a common sign of digoxin toxicity and should be closely monitored. Digoxin toxicity can lead to various cardiac dysrhythmias, with bradycardia being a significant indicator. Monitoring the client's heart rate is crucial to detect and manage digoxin toxicity promptly. Tachycardia, hypertension, and hyperglycemia are not typically associated with digoxin toxicity. Tachycardia is more commonly seen with inadequate treatment of heart failure, hypertension is a possible but less common effect, and hyperglycemia is not a typical sign of digoxin toxicity.

4. A client's serum calcium level is 7.9 mg/dL. The nurse is immediately concerned, knowing that this level could lead to which complication?

• A. Stroke
• B. Cardiac arrest
• C. High blood pressure
• D. Urinary stone formation

Correct answer: B

Rationale: A serum calcium level below normal (hypocalcemia) can lead to cardiac arrhythmias and potentially cardiac arrest. Calcium plays a crucial role in cardiac muscle contractility, and low levels can disrupt normal heart function, potentially leading to fatal arrhythmias and cardiac arrest. Choices A, C, and D are incorrect as hypocalcemia is not directly associated with stroke, high blood pressure, or urinary stone formation. The immediate concern with low serum calcium levels is the risk of cardiac complications.

5. A client with a history of angina pectoris complains of substernal chest pain. The nurse checks the client's blood pressure and administers nitroglycerin 0.4 mg sublingually. Five minutes later, the client is still experiencing chest pain. If the blood pressure is still stable, what should the nurse do next?

• A. Administer another nitroglycerin tablet.
• B. Apply 1 to 3 L/minute of oxygen via nasal cannula.
• C. Call for a 12-lead electrocardiogram (ECG) to be performed.
• D. Wait an additional 5 minutes, then give a second nitroglycerin tablet.

Correct answer: A

Rationale: When a client with angina pectoris continues to experience chest pain despite initial nitroglycerin administration and stable blood pressure, the appropriate next step is to administer another nitroglycerin tablet. This helps to further dilate coronary arteries, improving blood flow to the heart muscle and relieving chest pain. Applying oxygen via nasal cannula (Choice B) may be necessary if the client displays signs of respiratory distress or hypoxemia, but in this case, the priority is addressing the unresolved chest pain. Calling for a 12-lead electrocardiogram (ECG) (Choice C) is important to assess for any changes in the client's cardiac status, but administering another nitroglycerin tablet takes precedence in managing the ongoing chest pain. Waiting an additional 5 minutes before giving a second nitroglycerin tablet (Choice D) may delay symptom relief and potentially worsen the client's condition if the chest pain persists.

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