the test used to differentiate sickle cell trait from sickle cell disease is
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Nursing Elites

NCLEX-PN

Quizlet NCLEX PN 2023

1. The test used to differentiate sickle cell trait from sickle cell disease is:

Correct answer: D

Rationale: The correct test to differentiate between sickle cell trait and sickle cell disease is hemoglobin electrophoresis. This test separates different types of hemoglobin based on their electrical charge, allowing for the identification of specific hemoglobin variants like HbS in sickle cell disease. Sickle cell preparation and Sickledex are not specific tests for this differentiation. While a peripheral smear can show sickle cells, it does not provide a definitive differentiation between the trait and the disease as it doesn't identify the specific hemoglobin variant present.

2. Which of the following statements should the nurse use to best describe a very low-calorie diet (VLCD) to a client?

Correct answer: A

Rationale: The correct answer is, "This diet can be used when there is close medical supervision."? Very low-calorie diets (VLCDs) are used in the clinical treatment of obesity under close medical supervision. The diet is low in calories, high in quality protein, and has a minimum of carbohydrates to spare protein and prevent ketosis. Choice B is incorrect because VLCDs are typically short-term interventions. Choice C is incorrect because VLCDs usually consist of nutritionally complete liquid formulations, not solid food items that are pureed. Choice D is incorrect because VLCDs actually contain a high quality of protein, although the overall caloric content is very low.

3. What vitamin is important in preventing peripheral neuritis in a client with alcohol abuse?

Correct answer: B

Rationale: The correct answer is 'Fat-soluble vitamins.' Vitamin B, not Vitamin D, is crucial in preventing peripheral neuritis in individuals with alcohol abuse. Vitamin B deficiency, particularly B1 (thiamine), is commonly associated with peripheral neuritis in alcoholics. Therefore, choices A, C, and D are incorrect. Vitamin D is not directly related to peripheral neuritis, and potassium deficiency typically presents with different symptoms.

4. A client with stress incontinence should be advised:

Correct answer: B

Rationale: Kegel exercises, which involve tightening and releasing the pelvic floor muscles, can be beneficial for stress incontinence by strengthening the muscles that control urination. Choice A is incorrect as it is important for the client to know that absorbent undergarments can be used as a temporary solution but do not address the underlying issue. Choice C is incorrect as while surgical treatments are available, they are usually considered when conservative treatments like exercises and behavioral therapy have not been successful. Choice D is incorrect as behavioral therapy can be beneficial in managing stress incontinence through lifestyle and dietary modifications, bladder training, and more, contrary to the statement that it is ineffective.

5. A client has chronic respiratory acidosis caused by end-stage chronic obstructive pulmonary disease (COPD). Oxygen is delivered at 1 L/min via nasal cannula. The nurse teaches the family that the reason for this is to avoid respiratory depression, based on which of the following explanations?

Correct answer: A

Rationale: In clients with COPD and chronic respiratory acidosis, they are compensating for low oxygen and high carbon dioxide levels. Hypoxia acts as the main stimulus to breathe in individuals with chronic hypercapnia. When oxygen is administered, it can decrease the respiratory drive by eliminating the hypoxic drive and reducing the stimulus to breathe. Therefore, delivering oxygen at 1 L/min via nasal cannula helps prevent respiratory depression by maintaining the hypoxic drive to breathe. The other options are incorrect: COPD clients do not depend on a low carbon dioxide level as they are chronically hypercapnic, they do not retain hydrogen ions with high oxygen doses, and they do not thrive on a high oxygen level.

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