which of the following is most true about the esr test

NCLEX-RN

NCLEX RN Predictor Exam

1. 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.

2. A healthcare professional is considering which patient to admit to the same room as a patient who had a liver transplant 3 weeks ago and is now hospitalized with acute rejection. Which patient would be the best choice?

A. Patient who is receiving chemotherapy for liver cancer
B. Patient who is receiving chemotherapy for lung cancer
C. Patient who has a wound infection after cholecystectomy
D. Patient who requires pain management for chronic pancreatitis

Correct answer: D

Rationale: The patient with chronic pancreatitis is the best choice to admit to the same room as a patient who had a liver transplant and is experiencing acute rejection. This is because the patient with chronic pancreatitis does not pose an infection risk to the immunosuppressed patient who had a liver transplant. On the other hand, patients receiving chemotherapy for cancer or those with wound infections are at risk for infections, which could endanger the immunosuppressed patient with acute rejection.

3. Your patient had a stroke, or CVA, five years ago. The resident still has right-sided weakness. You are ready to transfer the resident from the bed to the wheelchair. The wheelchair should be positioned at the _____________.

A. head of the bed on the patient's right side
B. head of the bed on the patient's left side
C. bottom of the bed on the patient's right side
D. bottom of the bed on the patient's left side

Correct answer: B

Rationale: The wheelchair should be positioned at the head of the bed on the resident's left side. This positioning allows the resident to use their stronger left side to assist with the transfer, compensating for the right-sided weakness. Placing the wheelchair at the head of the bed on the patient's right side (Choice A) would not utilize the stronger left side, which is crucial for the transfer. Similarly, positioning the wheelchair at the bottom of the bed on either side (Choices C and D) would not facilitate optimal assistance from the resident's stronger side during the transfer process.

4. A patient is having difficulty understanding how to properly run her glucose meter. Which of the following teaching methods would best help the patient understand how to use her instrument correctly?

A. Give the patient an instruction booklet and encourage her to call the office if she has questions.
B. Tell the patient to ask a healthcare provider to demonstrate how to use the instrument.
C. Have the patient watch a video demonstrating the use of the instrument.
D. Demonstrate the proper use of the instrument and then have the patient perform the process while still in the office.

Correct answer: D

Rationale: By using a demonstration and performance method of patient education, the patient is offered a chance to perform a task and have learning assessed while still in the office. This ensures that any questions that the patient has can be answered immediately, and any performance issues observed by the medical assistant can also be corrected promptly. Choice A is not as effective as providing a demonstration in person, as it may not address the patient's specific learning needs or allow for immediate feedback. Choice B suggests asking a healthcare provider to demonstrate, which is similar to the correct answer but may not always be readily available in the office. Choice C, watching a video, lacks the interactive component and immediate feedback that a live demonstration provides, making it less effective in this scenario.

5. Which technique is correct when assessing the radial pulse of a patient?

A. Palpate for 1 minute if the rhythm is irregular.
B. Palpate for 15 seconds and multiply by 4 if the rhythm is regular.
C. Palpate for 2 full minutes to detect any variation in amplitude.
D. Palpate for 10 seconds and multiply by 6 if the rhythm is regular and the patient has no history of cardiac abnormalities.

Correct answer: A

Rationale: When assessing the radial pulse, if the rhythm is irregular, the pulse should be counted for a full minute to get an accurate representation of the pulse rate. In cases where the rhythm is regular, the recommended technique is to palpate for 15 seconds and then multiply by 4 to calculate the beats per minute. This method is more accurate and efficient for normal or rapid heart rates. Palpating for 30 seconds and multiplying by 2 is not as effective, as any error in counting results in a larger discrepancy in the calculated heart rate. Palpating for 2 full minutes is excessive and not necessary for routine pulse assessment. Palpating for 10 seconds and multiplying by 6 is not a standard technique and may lead to inaccuracies, especially in patients with cardiac abnormalities.