manual hematocrits are done
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. When are manual hematocrits done?

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.

2. Which gland of the endocrine system secretes a hormone that assists with the sleep/wake cycle?

Correct answer: B

Rationale: The correct answer is the Pineal gland. The Pineal gland, located in the brain, secretes melatonin, which plays a crucial role in regulating the sleep/wake cycle in response to exposure to light. The Pituitary gland (Choice A) secretes various hormones but not specifically related to the sleep/wake cycle. The Pancreas (Choice C) secretes insulin and digestive enzymes, not hormones related to the sleep/wake cycle. The Hypothalamus (Choice D) is involved in regulating many bodily functions, including hormone secretion, but it does not directly secrete the hormone that regulates the sleep/wake cycle.

3. You are taking care of 5 patients today. One of your patients wants water; another needs help walking to the bathroom; another just stated that they have chest pain; and another is crying because his daughter did not visit him today. Which patient care problem must you deal with first?

Correct answer: C

Rationale: The chest pain must be addressed immediately as it could indicate a serious condition like a heart attack. Treating chest pain is a top priority in healthcare settings due to the potential life-threatening nature of the symptom. Providing immediate attention to chest pain ensures prompt assessment, diagnosis, and intervention, which are crucial for patient safety and well-being. Addressing the other needs, such as providing water, assisting with bathroom needs, or emotional support, can follow once the urgent issue of chest pain has been managed. While the other patient concerns are important, the critical nature of chest pain requires immediate action to rule out severe cardiac events and provide appropriate care.

4. When placing a patient in the AP position for an X-ray, what position would the patient be in?

Correct answer: D

Rationale: The AP position stands for Anteroposterior Projection. When a patient is in the AP position for an X-ray, they are facing away from the X-ray film. This positioning allows for a clear view of the structures being imaged from front to back. Choices A, B, and C are incorrect because the patient is not facing or positioned against the X-ray film in the AP position, but rather facing away from it to capture the necessary diagnostic information.

5. What is the first aid for frostbite?

Correct answer: A

Rationale: First aid for frostbite involves running cold water over the affected area. It is important to avoid warm or hot water as it can shock the area and cause further tissue damage. Warm water should not be used to rapidly rewarm the affected area. Similarly, hot water should also be avoided as it can warm the area too quickly and potentially cause harm. Covering the area with a blanket and using a heating pad may not be effective and can even lead to more damage. Seeking medical assistance is crucial if the tissue appears necrotic to prevent further complications.

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