Nursing Elites

1. A nurse is preparing to teach a client about the use of a peak flow meter. Which of the following instructions should the nurse include?

• A. Place the mouthpiece in your mouth and blow out as quickly as you can.
• B. Exhale slowly into the mouthpiece over 5 seconds.
• C. Take a slow deep breath before blowing into the mouthpiece.
• D. Blow into the mouthpiece at a steady rate for 3 seconds.

Correct answer: A

Rationale: The correct instruction for using a peak flow meter is to place the mouthpiece in your mouth and blow out as quickly as you can. This action helps measure the peak expiratory flow of the client. Choice B is incorrect because exhaling slowly does not provide an accurate peak flow reading. Choice C is incorrect as taking a slow deep breath before blowing interferes with obtaining an accurate measurement. Choice D is incorrect as blowing at a steady rate for 3 seconds may not reflect the peak expiratory flow accurately.

2. A nurse is teaching a group of newly licensed nurses about measures to take when caring for a client who is on contact precautions. Which of the following should the nurse include in the teaching?

• A. Remove the protective gown after leaving the client's room
• B. Place the client in a room with positive pressure
• C. Wear gloves when providing care to the client
• D. Wear a mask when entering the client's room

Correct answer: C

Rationale: The correct measure to include when caring for a client on contact precautions is to wear gloves when providing care. Gloves help prevent the spread of infection and cross-contamination. Choice A is incorrect because the protective gown should be removed before leaving the client's room to prevent the spread of pathogens. Choice B is incorrect as clients on contact precautions should be in a room with negative pressure to prevent the spread of airborne contaminants. Choice D is incorrect as wearing a mask when changing linens is not specifically required for contact precautions.

3. 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.

4. Which of the following is the most concerning electrolyte imbalance for a patient on furosemide?

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

Correct answer: A

Rationale: The correct answer is Hypokalemia. Furosemide, a loop diuretic, can lead to potassium depletion in the body, causing hypokalemia. This is a significant concern as low potassium levels can result in cardiac arrhythmias and other serious complications. Hyperkalemia (Choice B) is unlikely to occur as a result of furosemide use. Hyponatremia (Choice C) is more commonly associated with thiazide diuretics. Hypercalcemia (Choice D) is not typically linked to furosemide use.

5. A nurse is caring for a client who has left-sided heart failure. Which of the following findings should the nurse expect?

• A. Peripheral edema.
• B. Bradycardia.
• C. Jugular vein distention.
• D. Dependent edema.

Correct answer: C

Rationale: Jugular vein distention is a classic sign of left-sided heart failure due to fluid overload in the pulmonary circulation. This occurs because the heart's left side is unable to pump effectively, causing increased pressure in the pulmonary veins and leading to blood backing up into the pulmonary circulation. Peripheral edema (choice A) and dependent edema (choice D) are more commonly associated with right-sided heart failure where blood pools in the systemic circulation, causing swelling in the extremities. Bradycardia (choice B) is not typically a direct consequence of left-sided heart failure; instead, tachycardia is more commonly seen as the heart compensates for its reduced efficiency.

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