NCLEX-RN
NCLEX RN Predictor Exam
1. 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.
2. The client reports nausea and constipation. Which of the following would be the priority nursing action?
- A. Collect a stool sample
- B. Complete an abdominal assessment
- C. Administer an anti-nausea medication
- D. Notify the physician
Correct answer: B
Rationale: The priority nursing action when a client reports symptoms like nausea and constipation is to complete an abdominal assessment. Assessment is crucial as it involves the systematic collection of data to understand the client's condition. By assessing the abdomen, the nurse can gather essential information to make a nursing diagnosis and develop a care plan. Collecting a stool sample (Choice A) may be necessary but comes after the assessment to confirm findings. Administering an anti-nausea medication (Choice C) addresses symptoms but does not address the underlying cause without a thorough assessment. Notifying the physician (Choice D) should come after the assessment to provide a complete picture of the client's condition.
3. A 60-year-old patient has been treated for pneumonia for the past 6 weeks. The patient is seen today in the clinic for an unexplained weight loss of 10 pounds over the last 6 weeks. Which is an appropriate rationale for this patient's weight loss?
- A. Chronic diseases such as hypertension do not usually cause weight loss.
- B. Weight loss is more likely due to underlying medical conditions than unhealthy eating habits.
- C. Unexplained weight loss often accompanies short-term illnesses.
- D. Weight loss is not typically caused by mental health dysfunctions.
Correct answer: C
Rationale: Unexplained weight loss in a patient with pneumonia could indicate an underlying short-term illness or a chronic condition like endocrine disease, malignancy, depression, anorexia nervosa, or bulimia. Hypertension is not commonly associated with weight loss; it usually leads to weight gain due to fluid retention. Unhealthy eating habits are less likely to explain significant unexplained weight loss over a short period. Mental health dysfunctions can affect appetite but are not typically primary causes of significant unexplained weight loss.
4. What is a common error when taking a pulse?
- A. Placing the index finger on the radial artery located on the thumb side of a patient's wrist.
- B. Noting a pulse as 'weak' when the pulsation disappears upon adding pressure.
- C. Counting the pulse for 15 seconds and multiplying the number by four.
- D. None of the above will cause errors.
Correct answer: C
Rationale: The correct answer is counting the pulse for 15 seconds and multiplying the number by four. To accurately assess a patient's heart rate or pulse, it is crucial to count the pulse for a full minute. Counting for only 15 seconds and then multiplying by four may result in an inaccurate heart rate calculation. This approach could miss arrhythmias or intermittent pulsations that could be vital indicators of the patient's condition. Placing the index finger on the radial artery, which is located on the thumb side of the patient's wrist, is the correct technique for taking a pulse. Noting a pulse as 'weak' when the pulsation disappears upon adding pressure is a valid observation and not an error in itself. Therefore, the most common error in this scenario is incorrectly calculating the pulse rate by multiplying a 15-second count by four.
5. When counting an infant's respirations, which technique is correct?
- A. Watching the chest rise and fall
- B. Observing the movement of the abdomen
- C. Placing a hand across the infant's chest
- D. Using a stethoscope to listen to the breath sounds
Correct answer: B
Rationale: The correct technique for counting an infant's respirations is to observe the movement of the abdomen. Infants typically have more diaphragmatic breathing than thoracic, so watching the abdomen provides a more accurate count. Placing a hand on the chest or listening with a stethoscope can alter the infant's breathing pattern and provide inaccurate results. Therefore, options A, C, and D are incorrect methods for counting an infant's respirations. By observing the movement of the abdomen, healthcare providers can accurately assess an infant's respiratory rate without influencing their breathing pattern.
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