NCLEX-RN
NCLEX RN Exam Review Answers
1. A patient asks the nurse why they must have a heparin injection. What is the nurse's best response?
- A. Heparin will dissolve clots that you have.
- B. Heparin will reduce the platelets that make your blood clot.
- C. Heparin will work better than warfarin.
- D. Heparin will prevent new clots from developing.
Correct answer: D
Rationale: The correct answer is D: 'Heparin will prevent new clots from developing.' Heparin is an anticoagulant medication that helps prevent the formation of new blood clots. It does not dissolve existing clots (choice A), reduce platelets (choice B), or necessarily work 'better' than warfarin (choice C) but rather functions differently. The primary action of heparin is to prevent the development of new clots, especially in conditions where clot formation is a concern.
2. You are caring for Thomas N., a 77-year-old man with edema in his legs and a fluid restriction. You have been assigned to weigh him daily. Based on these symptoms and the care he is receiving, what disorder is he most likely affected by?
- A. Diabetes
- B. Dementia
- C. Congestive heart failure
- D. Contiguous heart disease
Correct answer: C
Rationale: Thomas N.'s symptoms of edema in his legs and fluid restriction point towards congestive heart failure (CHF) rather than dementia or diabetes. In CHF, patients often present with dependent edema in their legs due to excessive blood volume, leading to fluid intake restrictions and a low-salt diet. Daily weight monitoring is crucial in CHF to assess fluid retention or loss. Diabetes primarily affects blood sugar levels, dementia is a cognitive disorder, and 'Contiguous heart disease' is not a recognized medical term, making choices A, B, and D incorrect in this scenario.
3. A serum potassium level of 3.2 mEq/L (3.2 mmol/L) is reported for a patient with cirrhosis who has scheduled doses of spironolactone (Aldactone) and furosemide (Lasix) due. Which action should the nurse take?
- A. Administer both drugs.
- B. Administer the spironolactone.
- C. Withhold the spironolactone and administer the furosemide.
- D. Withhold both drugs until discussed with the healthcare provider.
Correct answer: B
Rationale: A serum potassium level of 3.2 mEq/L is low (hypokalemia), which can be concerning in a patient with cirrhosis who is already at risk for electrolyte imbalances. Spironolactone is a potassium-sparing diuretic that can help increase the patient's potassium level and correct the hypokalemia. Therefore, the appropriate action for the nurse to take in this scenario is to administer the spironolactone. Withholding the spironolactone could further lower the potassium level. Furosemide, on the other hand, is a loop diuretic that can lead to potassium loss and worsen hypokalemia; hence, it should be withheld until the nurse discusses the situation with the healthcare provider. While the healthcare provider should be informed about the low potassium value, immediate administration of spironolactone is necessary to address the hypokalemia in this patient population.
4. Which of the following glands found in the skin secretes a liquid called Sebum?
- A. Apocrine Glands
- B. Sebaceous Glands
- C. Lacrimal Glands
- D. Sweat Glands
Correct answer: B
Rationale: Sebum is a liquid secreted by glands in the skin known as sebaceous glands. Sebum's primary function is to lubricate the skin and help maintain its integrity. Apocrine glands secrete a different type of sweat that is odorless but can develop an odor when combined with bacteria on the skin. Lacrimal glands produce tears to keep the eyes moist, and sweat glands secrete sweat to regulate body temperature through evaporation. Therefore, the correct answer is Sebaceous Glands because they specifically secrete sebum, distinguishing them from the other gland types mentioned.
5. During a physical exam, a healthcare professional assisting a client suspected of having meningitis bends the client's leg at the hip to a 90-degree angle. When attempting to extend the leg at the knee, the client experiences severe pain. What type of test is being performed?
- A. Brudzinski's sign
- B. Romberg's sign
- C. Kernig's sign
- D. Babinski's sign
Correct answer: C
Rationale: The healthcare professional is performing Kernig's sign, a test for meningeal irritation often seen in meningitis cases. Kernig's sign involves bending the client's leg at a 90-degree angle at the hip and then attempting to extend the leg at the knee. Severe pain during this maneuver indicates a positive Kernig's sign, suggesting irritation of the meningeal membranes. Brudzinski's sign involves flexing the neck causing involuntary flexion of the hips and knees; Romberg's sign assesses balance and proprioception; Babinski's sign checks for abnormal reflexes in the foot.
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