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. Your elderly patient has a temperature of 98.5 degrees. Is there anything else that a nurse should do, in addition to documenting this temperature?
- A. No, this temperature is within normal limits.
- B. No, this temperature is normally hyperthermic.
- C. Yes, this temperature is highly hyperthermic.
- D. Yes, this temperature is highly hypothermic.
Correct answer: A
Rationale: No, there is nothing else that a nurse should do. A temperature of 98.5 degrees for an elderly patient falls within normal limits. Other choices are incorrect because the temperature is not hyperthermic (abnormally high) or hypothermic (abnormally low), making choices B, C, and D inaccurate responses in this scenario.
3. In a 68-year-old man, a gradual loss of hearing is known as _____________.
- A. presbycusis
- B. xerostomia
- C. myopia
- D. presbyopia
Correct answer: A
Rationale: The correct answer is 'presbycusis.' Presbycusis is the age-related gradual loss of hearing ability, commonly seen in the elderly population. Xerostomia refers to dry mouth, myopia is nearsightedness, and presbyopia is the age-related loss of the eye's ability to focus on close objects. Given Mr. Roberts' age and symptom of gradual hearing loss, presbycusis is the most likely diagnosis. Xerostomia, myopia, and presbyopia do not match the sensory change described in the question, making them incorrect choices.
4. A child is admitted to the hospital several days after stepping on a sharp object that punctured her athletic shoe and entered the flesh of her foot. The physician is concerned about osteomyelitis and has ordered parenteral antibiotics. Which of the following actions is done immediately before the antibiotic is started?
- A. The admission orders are written.
- B. A blood culture is drawn.
- C. A complete blood count with differential is drawn.
- D. The parents arrive.
Correct answer: B
Rationale: Before starting antibiotics, a blood culture should be drawn to identify the causative organism. This step is crucial as antibiotics may interfere with the identification process. Drawing a complete blood count with differential or writing admission orders are important steps in patient care but are not as critical as obtaining a blood culture to guide appropriate antibiotic therapy. The arrival of the parents is not directly related to the immediate action required before starting antibiotics in this scenario.
5. When should you wear gloves?
- A. preparing infant formula for a newborn baby
- B. transferring breast milk into a baby bottle
- C. knocking on a patient's door
- D. opening a patient's door
Correct answer: B
Rationale: You must wear gloves when transferring breast milk into a baby bottle because breast milk is considered a bodily fluid. It is essential to avoid direct contact to prevent contamination. When preparing infant formula, gloves are not required as formula is not a bodily fluid. Knocking on or opening a patient's door does not involve direct contact with bodily fluids, so gloves are unnecessary in those situations.
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