which of the following is most true about the esr test
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

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

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. Which practice will help reduce the risk of a needlestick injury?

Correct answer: C

Rationale: To reduce the risk of a needlestick injury, it is essential to keep a sharps container nearby where it can be easily accessed. This practice ensures quick and safe disposal of needles after use, minimizing the chances of accidental needlesticks. Recapping needles should be avoided as it increases the risk of injuries. Passing needles between workers should also be avoided to prevent accidental needle pricks during handovers. Therefore, the best practice to prevent needlestick injuries is to maintain a sharps container nearby for safe and immediate disposal of needles.

3. Which of the following statements best describes footdrop?

Correct answer: B

Rationale: Footdrop results in the foot becoming permanently fixed in a plantar flexion position, not dorsiflexion. This position points the toes downward. The client may be unable to put weight on the foot, making ambulation difficult. Footdrop can be caused by immobility or chronic illnesses that cause muscle changes, such as multiple sclerosis or Parkinson's disease. Choice A is incorrect because footdrop leads to plantar flexion, not dorsiflexion. Choice C is incorrect as it describes a different condition known as 'toe fanning.' Choice D is incorrect as it describes an external rotation of the heel, which is not a characteristic of footdrop.

4. Following hospitalization for congestive heart failure, a client is discharged. The nurse teaching the family suggests they encourage the client to rest frequently in which of the following positions?

Correct answer: A

Rationale: The correct answer is High Fowler's. Sitting in a chair or resting in a bed in the high Fowler's position helps decrease the cardiac workload and facilitates breathing in clients with congestive heart failure. This position helps reduce venous return and increases lung expansion, improving oxygenation. The supine position (choice B) may lead to increased pressure on the heart and lungs, making it less suitable for these clients. The left lateral position (choice C) is not as effective as High Fowler's in reducing cardiac workload and improving breathing. Low Fowler's position (choice D) does not provide the same benefits as the High Fowler's position for clients with congestive heart failure.

5. Which term best describes changes such as retirement, grandparenting, and increased dependence on others?

Correct answer: B

Rationale: The correct answer is 'Psychosocial.' Retirement, grandparenting, and increased dependence on others are examples of psychosocial changes because they involve social interactions, relationships, and psychological aspects. 'Moral' (Choice A) does not directly relate to the changes mentioned. 'Self-esteem' (Choice C) is more about self-perception and confidence, not the social changes mentioned. 'Psychomotor' (Choice D) refers to physical movements and skills, which are not the focus of the changes described in the question.

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