manual hematocrits are done

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. Which of the following descriptors is most appropriate to use when stating the 'problem' part of a nursing diagnosis?

A. Grimacing
B. Anxiety
C. Oxygenation saturation 93%
D. Output 500 mL in 8 hours

Correct answer: B

Rationale: The problem part of a nursing diagnosis in the context of nursing care plans should focus on the client's response to a life process, event, or stressor. This response is what is used to identify the nursing diagnosis. 'Anxiety' is the most appropriate descriptor for the problem part of a nursing diagnosis as it reflects a psychological response that can be addressed by nursing interventions. 'Grimacing' is a physical manifestation and not the problem itself. 'Oxygenation saturation 93%' and 'Output 500 mL in 8 hours' are data points or cues that a nurse would use to formulate the nursing diagnostic statement, not the actual problem being addressed.

3. The supervising RN asks you to bring the unit's collected lab specimens to the lab 'stat'. You should ______________.

A. not decline this task because nurses do not handle 'stats'.
B. run this errand as promptly as possible
C. run this errand immediately and without delay
D. Complete this task before the end of your shift or after your lunch.

Correct answer: C

Rationale: In healthcare settings, 'stat' is commonly used to indicate that something should be done immediately and without any delay. It is a critical term used to prioritize urgent tasks. Nurses are responsible for various tasks, including handling urgent requests such as transporting lab specimens promptly. Option A is incorrect as nurses can handle urgent tasks like 'stats'. Option B is not as specific as option C, which clearly emphasizes the need for immediate action. Option D is incorrect as it suggests delaying the task until later, which goes against the urgency implied by the term 'stat'.

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. What would be an appropriate evaluation statement for the nurse to write based on the client's ability to state only two signs of impaired circulation out of three as expected?

A. Client understands the signs of impaired circulation
B. Goal met: Client cited numbness and tingling as a sign of impaired circulation
C. Goal not met: Client able to name only two signs of impaired circulation
D. Goal not met: Client unable to describe signs of impaired circulation

Correct answer: C

Rationale: The appropriate evaluation statement for the nurse to write would be 'Goal not met: Client able to name only two signs of impaired circulation.' In this scenario, the client has only identified two out of the three signs of impaired circulation specified in the desired outcome. Therefore, the goal has not been fully achieved. It is essential in nursing practice to assess and document client progress accurately. While the client has shown some understanding by correctly identifying numbness and tingling as signs of impaired circulation, the inability to state the third sign indicates an incomplete achievement of the goal. This evaluation helps guide further interventions or educational strategies to help the client meet the desired outcome in the care plan.