NCLEX-PN
NCLEX PN Exam Cram
1. Which of the following should not be included in the teaching for clients who take oral iron preparations?
- A. Mix the liquid iron preparation with antacids to reduce GI distress.
- B. Take the iron with meals if GI distress occurs.
- C. Liquid forms should be taken with a straw to avoid discoloration of tooth enamel.
- D. Oral forms should be taken with juice, not milk.
Correct answer: A
Rationale: The correct answer is to mix the liquid iron preparation with antacids to reduce GI distress. This statement is incorrect because iron should not be mixed with antacids as it can significantly reduce the absorption of iron. Choice B is a good recommendation as taking iron with meals can help reduce gastrointestinal distress. Choice C is also correct as liquid forms of iron should be taken with a straw to prevent the discoloration of tooth enamel. Choice D is incorrect as iron preparations can be taken with juice or water, but not with milk, as calcium in milk can inhibit iron absorption.
2. The physician wants to know if a client is tolerating their total parenteral nutrition. Which of the following laboratory tests is likely to be ordered?
- A. triglyceride level
- B. liver function tests
- C. a glucose tolerance test
- D. a complete blood count
Correct answer: B
Rationale: The liver is crucial in processing nutrients and medications received through total parenteral nutrition. Liver function tests assess various enzymes produced by the liver, including prothrombin time/partial prothrombin time, serum glutamic oxaloacetic and pyruvic transaminases, gamma glutamyl transpeptidase, albumin, and alkaline phosphatase. Monitoring these enzymes can help determine if the liver is functioning properly to metabolize the nutrients from TPN. Triglyceride levels (Choice A) primarily evaluate the body's ability to clear fats, not specifically related to TPN tolerance. A glucose tolerance test (Choice C) is used to diagnose diabetes by measuring blood glucose levels after ingesting a glucose-rich solution, not directly related to TPN tolerance. A complete blood count (Choice D) assesses blood components such as red blood cells, white blood cells, and platelets but does not provide specific information about TPN tolerance.
3. In a client with asthma who develops respiratory acidosis, what should the nurse expect the client's serum potassium level to be?
- A. normal
- B. elevated
- C. low
- D. unrelated to the pH
Correct answer: B
Rationale: In respiratory acidosis, the serum potassium level is expected to be elevated. This occurs because potassium shifts from cells into the bloodstream as a compensatory mechanism to maintain acid-base balance. Choices A, C, and D are incorrect. A normal potassium level is not expected in respiratory acidosis. A low potassium level is more commonly associated with alkalosis, not acidosis. The potassium level is indeed related to pH changes in respiratory acidosis, leading to the expected elevation.
4. A patient has just been prescribed Minipress to control hypertension. The nurse should instruct the patient to be observant of the following:
- A. Dizziness and light-headed sensations
- B. Weight gain
- C. Sensory changes in the lower extremities
- D. Fatigue
Correct answer: A
Rationale: The correct answer is 'Dizziness and light-headed sensations.' Minipress, a medication used to control hypertension, can cause hypotension as a side effect. Dizziness and light-headed sensations are common symptoms of hypotension. Weight gain, sensory changes in the lower extremities, and fatigue are not typically associated with Minipress or hypertension management. Therefore, they are incorrect choices.
5. What happens if folic acid is administered to treat anemia without determining its underlying cause?
- A. Erythropoiesis is inhibited
- B. Excessive levels of folic acid might accumulate, causing toxicity
- C. The symptoms of pernicious anemia might be masked, delaying treatment
- D. Intrinsic factor is destroyed
Correct answer: C
Rationale: When folic acid is given without determining the underlying cause of anemia, the symptoms of pernicious anemia may be masked, potentially delaying the correct treatment. Folic acid alone does not protect against the central nervous system changes seen in pernicious anemia, which are related to Vitamin B12 deficiency. Folic acid and Vitamin B12 are both crucial for cell growth and division. Administering folic acid without knowing the specific type of anemia could lead to a delay in addressing the root cause. Option A is incorrect because folic acid is essential for erythropoiesis, the production of red blood cells. Option B is incorrect as excessive folic acid can cause toxicity, but it is not the primary concern in this context. Option D is incorrect because folic acid treatment for anemia does not directly impact intrinsic factor, which is related to Vitamin B12 absorption.
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