Nursing Elites

1. A nurse is reviewing the laboratory results of a client who has hypokalemia. Which of the following findings should the nurse expect?

• A. Serum potassium 5.4 mEq/L
• B. Flat T waves
• C. Elevated ST segments
• D. Bradycardia

Correct answer: B

Rationale: Flat T waves are a characteristic ECG finding in hypokalemia. Hypokalemia causes a decrease in serum potassium levels, leading to altered cardiac conduction. Flat T waves are associated with hypokalemia-induced cardiac dysrhythmias. Elevated ST segments are typically seen in conditions like myocardial infarction, not in hypokalemia. Bradycardia is not a typical manifestation of hypokalemia; instead, tachycardia may occur due to potassium imbalances affecting the heart's electrical activity.

2. A client has a new prescription for ferrous sulfate. Which of the following instructions should the nurse include in the teaching?

• A. Take this medication on an empty stomach.
• B. Take this medication with milk if it causes stomach upset.
• C. Take this medication with orange juice to increase absorption.
• D. Take an antacid 1 hour after this medication.

Correct answer: C

Rationale: The correct instruction is to take ferrous sulfate with orange juice to increase absorption because the vitamin C content in orange juice enhances iron absorption. Choice A is incorrect because ferrous sulfate should be taken with food to reduce gastrointestinal side effects. Choice B is incorrect because milk can decrease iron absorption. Choice D is incorrect because antacids can reduce the absorption of ferrous sulfate.

3. A nurse is preparing to insert an indwelling urinary catheter for a female client. Which of the following actions should the nurse take?

• A. Perform perineal care before the procedure.
• B. Apply sterile gloves before cleansing the perineal area.
• C. Place the client in a supine position.
• D. Lubricate the catheter with alcohol-based gel.

Correct answer: B

Rationale: Before inserting an indwelling urinary catheter for a female client, the nurse should apply sterile gloves before cleansing the perineal area to prevent infection. Performing perineal care before the procedure is incorrect as it should be done after catheter insertion. Placing the client in a side-lying position is not necessary for this procedure. Lubricating the catheter with petroleum jelly is not recommended as it can damage the catheter; using a water-soluble lubricant is preferred.

4. A client has a new diagnosis of COPD. Which of the following instructions should the nurse include in the teaching?

• A. Breathe rapidly through your mouth when using the incentive spirometer.
• B. Use pursed-lip breathing during periods of dyspnea.
• C. Avoid drinking fluids during meals.
• D. Use diaphragmatic breathing during periods of dyspnea.

Correct answer: B

Rationale: Pursed-lip breathing is a beneficial technique for clients with COPD as it helps control shortness of breath and improves oxygenation. This technique involves inhaling slowly through the nose and exhaling through pursed lips, which helps keep airways open. Option A is incorrect as breathing rapidly through the mouth when using the incentive spirometer can lead to hyperventilation. Option C is incorrect because it is important for clients with COPD to stay hydrated by drinking fluids between meals, but not during meals which can cause bloating and discomfort. Option D is incorrect as diaphragmatic breathing, though beneficial, is not the preferred technique for managing dyspnea in COPD; pursed-lip breathing is more effective.

5. Which electrolyte imbalance is most concerning for a patient on loop diuretics?

• A. Hypokalemia
• B. Hyponatremia
• C. Hyperkalemia
• D. Hypercalcemia

Correct answer: A

Rationale: The correct answer is hypokalemia. Loop diuretics can cause potassium depletion leading to hypokalemia, which is particularly concerning as it can result in cardiac arrhythmias. Hyponatremia (choice B) is not typically associated with loop diuretics. Hyperkalemia (choice C) is less common in patients on loop diuretics. Hypercalcemia (choice D) is not a typical electrolyte imbalance associated with loop diuretics.

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