NCLEX-RN
NCLEX RN Predictor Exam
1. A urine pregnancy test:
- A. May be negative even if a blood pregnancy test is positive.
- B. Is positive only during the first trimester of pregnancy.
- C. Will be negative if the amount of LH isn't enough to meet or exceed the sensitivity of the testing device.
- D. All of the above.
Correct answer: A
Rationale: A urine pregnancy test detects HCG in a pregnant woman's urine. Blood levels of HCG are usually higher and register earlier than HCG levels in the urine. Choice A is correct because urine pregnancy tests may be negative even if a blood pregnancy test is positive due to the differences in HCG levels in blood and urine. Choice B is incorrect because a urine pregnancy test can be positive throughout pregnancy, not just in the first trimester. Choice C is incorrect because LH (luteinizing hormone) is not the hormone detected in a pregnancy test; it is HCG (human chorionic gonadotropin). Choice D is incorrect because not all the statements provided are true.
2. The nurse is conducting a health fair for older adults. Which statement is true regarding vital sign measurements in aging adults?
- A. The pulse is easier to palpate due to the rigidity of the blood vessels.
- B. An increased respiratory rate and a shallower inspiratory phase are expected findings.
- C. A widened pulse pressure occurs from changes in the systolic and diastolic blood pressures.
- D. Changes in the body's temperature regulatory mechanism decrease the older adult's likelihood of developing a fever.
Correct answer: B
Rationale: Aging causes a decrease in vital capacity and decreased inspiratory reserve volume. As a result, the examiner may observe a shallower inspiratory phase and an increased respiratory rate in older adults. Contrary to common belief, the increased rigidity of arterial walls actually makes the pulse easier to palpate in aging adults. Pulse pressure is widened, not decreased, due to changes in systolic and diastolic blood pressures. Furthermore, changes in the body's temperature regulatory mechanism make older individuals less likely to develop a fever but more susceptible to hypothermia.
3. Which of the following is NOT an acceptable abbreviation?
- A. D/C
- B. tid
- C. bid
- D. qid
Correct answer: A
Rationale: The correct answer is A: D/C. D/C is not an acceptable abbreviation as it can be easily confused with both 'discharge' and 'discontinue.' The abbreviations 'tid' (three times a day), 'bid' (twice a day), and 'qid' (four times a day) are commonly used in medical contexts to indicate dosing frequencies and are widely accepted in healthcare settings.
4. When measuring a patient's body temperature, what factor should be considered that can influence the temperature?
- A. Constipation
- B. Diurnal cycle
- C. Nocturnal cycle
- D. Patient's emotional state
Correct answer: B
Rationale: When measuring body temperature, it is essential to consider factors that can influence it. The diurnal cycle, which refers to the body's natural temperature variations throughout a 24-hour period, can impact body temperature readings. Factors like exercise, age, and environment can also affect body temperature. Constipation does not directly influence body temperature. The 'nocturnal cycle' is not a recognized term in relation to body temperature. While a patient's emotional state can affect vital signs, it is not a primary factor in influencing body temperature measurements.
5. What is the most important step that healthcare personnel can take to prevent the transmission of microorganisms in the hospital setting?
- A. Wear protective eyewear at all times.
- B. Wear gloves whenever in direct contact with patients.
- C. Wash hands before and after contact with each patient.
- D. Clean the stethoscope with an alcohol swab between patients.
Correct answer: C
Rationale: The most crucial step in preventing the transmission of microorganisms in the hospital setting is proper hand hygiene. Healthcare personnel should wash their hands thoroughly before and after each patient contact to reduce the risk of spreading infections. While cleaning the stethoscope with an alcohol swab between patients is recommended, it is secondary to hand hygiene. Wearing protective eyewear at all times is not necessary for routine patient care unless specifically indicated, and wearing gloves only when in direct contact with patients is important but not as critical as proper handwashing. Therefore, the correct answer is to wash hands before and after contact with each patient.
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