NCLEX-RN
NCLEX RN Exam Prep
1. Which of the following is a fat-soluble vitamin?
- A. Vitamin C
- B. Vitamin D
- C. Vitamin B-6
- D. Riboflavin
Correct answer: B
Rationale: The correct answer is Vitamin D. Fat-soluble vitamins are those that can be stored in the body, allowing excess amounts to be stored for later use. While this storage ability can help prevent deficiencies, it also poses a risk of toxicity. The fat-soluble vitamins are A, E, D, and K. Choice A, Vitamin C, is water-soluble, not fat-soluble. Choice C, Vitamin B-6, and Choice D, Riboflavin, are also water-soluble vitamins and not fat-soluble.
2. Which is the most effective action for controlling the spread of infection?
- A. Thorough hand hygiene
- B. Wearing gloves and masks when providing direct client care
- C. Implementing appropriate isolation precautions
- D. Administering broad-spectrum prophylactic antibiotics
Correct answer: A
Rationale: Thorough hand hygiene is the most effective action for controlling the spread of infection as hands are a common source of transmission. Regular and routine hand hygiene helps prevent the movement of potentially infective materials. Wearing gloves and masks is important when providing direct client care to protect both the caregiver and the patient, but it is not as effective as thorough hand hygiene in preventing overall infection spread. Implementing appropriate isolation precautions is necessary for clients with known communicable diseases, but it is not as universally effective in preventing the spread of various infections. Administering broad-spectrum prophylactic antibiotics is not an appropriate measure for controlling the spread of infection as routine use can lead to superinfection and the development of resistant organisms.
3. During the evaluation of the quality of home care for a client with Alzheimer's disease, the priority for the nurse is to reinforce which statement by a family member?
- A. "At least two (2) full meals a day are eaten."?
- B. "We go to a group discussion every week at our community center."?
- C. "We have safety bars installed in the bathroom and have 24-hour alarms on the doors."?
- D. "The medication is not a problem to have taken three (3) times a day."?
Correct answer: C
Rationale: The correct answer is, '"We have safety bars installed in the bathroom and have 24-hour alarms on the doors."?' Ensuring the safety of a client with Alzheimer's disease is crucial in home care. Installing safety features like bars in the bathroom and alarms on doors help prevent accidents and injuries. This contributes to creating a safe environment that promotes independence and autonomy for the client. Choices A, B, and D are incorrect because while they are important aspects of care, ensuring safety in the home environment takes precedence in caring for a client with Alzheimer's disease.
4. When are manual hematocrits done?
- A. to monitor anemia
- B. by using a microhematocrit tube.
- C. to measure the percentage of plasma to cells.
- D. All of the above.
Correct answer: D
Rationale: Manual hematocrits are performed to monitor anemia, which involves measuring the percentage of red blood cells in the blood. The process involves collecting blood in a microhematocrit tube, then centrifuging it to separate the plasma from the cells. By measuring the ratio of plasma to cells, healthcare providers can assess the patient's hematocrit level. Therefore, all the provided options are correct as they collectively describe the purpose and procedure of manual hematocrits.
5. Which of the following is a negative outcome associated with impaired mobility?
- A. Increased amounts of calcium are absorbed from circulation
- B. A drop in blood pressure occurs when rising from a sitting to a standing position
- C. The amount of mucus in the bronchi and lungs decreases
- D. The vessel walls of the circulatory system thicken
Correct answer: B
Rationale: A client with impaired mobility may develop changes in body systems that put them at risk of further illness or injury. One negative outcome associated with impaired mobility is orthostatic hypotension, where blood pressure drops significantly when moving from a sitting or lying position to a standing position. This drop in blood pressure can lead to symptoms such as dizziness or fainting. This occurs because blood circulates more slowly or pools in the distal extremities due to impaired mobility. Choice A is incorrect because increased calcium absorption is not a typical negative outcome associated with impaired mobility. Choice C is incorrect because a decrease in mucus in the bronchi and lungs is not a common negative outcome of impaired mobility. Choice D is incorrect because thickening of vessel walls in the circulatory system is not directly associated with impaired mobility.
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