to properly read a meniscus
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. To properly read a meniscus,

Correct answer: A

Rationale: To properly read a meniscus, it is essential to hold the measuring device at eye level to avoid parallax error. Reading the bottom of the curve of the liquid level is correct because the meniscus is the concave or convex curve at the liquid's surface. Choice B is incorrect because reading the top of the curve where the liquid adheres to the walls of the container can lead to inaccurate measurements. Choices C and D are incorrect as they suggest holding the device at table level, which can introduce parallax error and result in an incorrect reading.

2. When are manual hematocrits done?

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.

3. Which of the following questions is considered open-ended?

Correct answer: C

Rationale: The correct answer is 'Please describe your symptoms.' This question is considered open-ended because it encourages the respondent to provide a detailed and descriptive answer, fostering a more elaborate response. Open-ended questions are designed to prompt thoughtful and detailed responses. Choice A is a closed-ended question since it seeks a specific time for the medication intake. Choice B is also closed-ended as it can be answered with a simple 'yes' or 'no,' limiting the response. Choice D is closed-ended as it requests a specific day for the follow-up appointment, restricting the range of possible responses.

4. The abbreviation ac is defined as _____________.

Correct answer: A

Rationale: The correct answer is 'before the meal.' The abbreviation 'ac' is derived from the Latin term 'ante cibum,' which translates to 'before a meal.' Choices B, C, and D are incorrect because 'ac' does not refer to 'with the meal,' 'after the meal,' or 'ante corpis.' It specifically denotes something occurring before a meal, making option A the correct choice in this context.

5. A 2-year-old child has been brought to the clinic for a well-child checkup. What is the best way for the nurse to begin the assessment?

Correct answer: C

Rationale: The best place to examine the toddler is on the parent's lap. Toddlers understand symbols; therefore, a security object is helpful. Initially, the focus is more on the parent, which allows the child to adjust gradually and to become familiar with you. A 2-year-old child does not like to take off his or her clothes. Therefore, ask the parent to undress one body part at a time.

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