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. Match the abbreviation with the correct definition:

A. bid: twice a day
B. tid: three times a day
C. ac: before meals
D. pc: after meals

Correct answer: C

Rationale: The abbreviation 'ac' stands for 'ante cibum,' which means 'before meals.' 'Bid' means twice a day. 'Tid' means three times a day, and 'pc' means after meals. When interpreting medical abbreviations, it is crucial to understand their precise meanings to ensure accurate communication and patient care.

3. One major difference between long term care and respite centers is the fact that long term care facilities:

A. provide both physical and emotional care on an ongoing basis, while respite centers offer only temporary services.
B. provide care for residents on a long-term basis, while respite centers offer only outpatient services.
C. provide care for residents on a long-term basis, while respite centers offer only temporary services.
D. There is no difference. Long-term care and respite care are the same.

Correct answer: C

Rationale: The major difference between long-term care and respite centers is that long-term care facilities provide both physical and emotional care on an ongoing, long-term basis. This continuous care is essential for residents who require extended assistance. In contrast, respite centers offer temporary services, providing similar care but for a short-term duration. These short-term services are designed to give family caregivers a break from their daily responsibilities. Choice A is incorrect because both long-term care and respite centers can offer both physical and emotional care, but the key distinction lies in the duration of care provided. Choice B is incorrect as respite centers do not typically offer outpatient services, and the focus is on temporary relief rather than long-term care. Choice D is incorrect as the question clearly highlights a major difference between long-term care and respite centers.

4. When checking for proper blood pressure cuff size, which guideline is correct?

A. The standard cuff size is appropriate for all sizes.
B. The length of the rubber bladder should equal 80% of the arm circumference.
C. The width of the rubber bladder should equal 80% of the arm circumference.
D. The width of the rubber bladder should equal 40% of the arm circumference.

Correct answer: D

Rationale: When selecting the correct blood pressure cuff size, it is essential to ensure that the width of the rubber bladder equals 40% of the circumference of the person's arm. This ensures proper fitting and accurate readings. The length of the bladder should actually equal 80% of the arm circumference, not 80% of the width, making choices B and C incorrect. Choice A stating that the standard cuff size is appropriate for all sizes is inaccurate, as using an incorrectly sized cuff can lead to inaccurate blood pressure readings.

5. What is the MOST ACCURATE statement regarding the ESR test?

A. The results are diagnostic for certain conditions.
B. Abnormal results are indicative of a potentially fatal illness.
C. Abnormal results should be followed by additional testing.
D. Results are reported in millimeters per hour.

Correct answer: C

Rationale: The erythrocyte sedimentation rate (ESR) is a non-specific screening test for inflammation in the body. It is not used as a definitive diagnostic tool for specific conditions. When ESR results are abnormal, they indicate the presence of inflammation, which can be caused by various reasons. Therefore, abnormal results should be followed by additional testing to determine the underlying cause. The ESR test measures the rate at which red blood cells settle in a vertical tube over the span of one hour, and results are reported in millimeters per hour. Choice A is incorrect because ESR results are not solely diagnostic for any specific condition. Choice B is incorrect as abnormal ESR results do not directly indicate a potentially fatal illness without further investigation. Choice D is incorrect as the results are reported in millimeters per hour, not per minute.