NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. Which of these actions illustrates the correct technique for a nurse when assessing oral temperature with a glass thermometer?
- A. Wait 30 minutes if the patient has ingested hot or iced liquids.
- B. Leave the thermometer in place for 3 to 4 minutes if the patient is afebrile.
- C. Shake the glass thermometer down to 35.5�C before taking the patient's temperature.
- D. Place the thermometer at the base of the tongue and ask the patient to close his or her lips.
Correct answer: B
Rationale: The correct technique for assessing oral temperature with a glass thermometer involves leaving the thermometer in place for 3 to 4 minutes if the patient is afebrile and up to 8 minutes if the patient is febrile. Waiting 30 minutes if the patient has ingested hot or iced liquids is incorrect; instead, the nurse should wait 15 minutes in such cases. Shaking the glass thermometer down to 35.5�C, not 37.5�C, is the correct procedure before taking the patient's temperature. Placing the thermometer at the base of the tongue, not the front, and asking the patient to close their lips is the proper way to position the thermometer. Therefore, the correct answer is to leave the thermometer in place for 3 to 4 minutes if the patient is afebrile and up to 8 minutes if the patient is febrile.
2. An adult's blood pressure reads 40/20. You place the patient in a Trendelenberg position before rechecking the blood pressure. What actions will you take to position the patient correctly?
- A. lower the head of the bed and raise the foot of the bed
- B. raise the head of the bed up to about 60 to 75 degrees
- C. raise the head of the bed up to about 75 to 90 degrees
- D. raise the siderails and place the bed in the high position
Correct answer: A
Rationale: In a Trendelenberg position, used for low blood pressure, the correct action is to lower the head of the bed and raise the foot of the bed. This positioning facilitates the return of blood to the heart and helps increase blood pressure. Option B, raising the head of the bed to 60 to 75 degrees, is incorrect as it is not the Trendelenberg position. Option C, raising the head of the bed to 75 to 90 degrees, is incorrect as it does not align with the Trendelenberg position. Option D, raising the siderails and placing the bed in the high position, is incorrect as it does not address the specific positioning required for the Trendelenberg position.
3. The nurse is reviewing the hot/cold theory of health and illness. Which statement best describes the basic tenets of this theory?
- A. The causation of illness is based on supernatural forces that influence the humors of the body.
- B. Herbs and medicines are classified based on their physical characteristics of hot and cold and the humors of the body.
- C. The four humors of the body consist of blood, yellow bile, black bile, and phlegm.
- D. The treatment of disease consists of adding or subtracting cold, heat, dryness, or wetness to restore the balance of the humors of the body.
Correct answer: D
Rationale: The hot/cold theory of health and illness is based on the four humors of the body: blood, phlegm, black bile, and yellow bile. These humors regulate the basic bodily functions, described in terms of temperature, dryness, and moisture. The treatment of disease in this theory involves adding or subtracting cold, heat, dryness, or wetness to restore the balance of the humors. Choice A is incorrect as the theory is not based on supernatural forces but on the balance of bodily humors. Choice B is incorrect as herbs and medicines are not classified solely based on their physical characteristics of hot and cold in this theory. Choice C is incorrect as the four humors are blood, phlegm, black bile, and yellow bile, not spiritual connectedness or social aspects. Therefore, the correct choice is D, as it accurately reflects a foundational tenet of the hot/cold theory of health and illness.
4. When considering the concepts related to blood pressure, which statement best describes the concept of mean arterial pressure (MAP)?
- A. MAP is the pressure of the arterial pulse.
- B. MAP reflects the stroke volume of the heart.
- C. MAP is the pressure forcing blood into the tissues, averaged over the cardiac cycle.
- D. MAP is an average of the systolic and diastolic blood pressures and reflects tissue perfusion.
Correct answer: C
Rationale: Mean Arterial Pressure (MAP) is the pressure that forces blood into the tissues, averaged over the cardiac cycle. It is not the pressure of the arterial pulse (Choice A), nor does it directly reflect the stroke volume of the heart (Choice B). While MAP involves systolic and diastolic pressures, it is not simply an average of these two values as diastole lasts longer. Instead, MAP is closer to diastolic pressure plus one third of the pulse pressure. The best description of MAP is that it represents the pressure forcing blood into the tissues, averaged over the cardiac cycle.
5. A client is being instructed on how to use crutches. Which of the following information should be included in the teaching?
- A. Place the majority of body weight on the axilla.
- B. Dry crutch tips with a paper towel if they become wet.
- C. Use the crutches for support to lift both feet simultaneously when ascending stairs.
- D. Both B and C.
Correct answer: B
Rationale: When instructing a client on how to use crutches for ambulation, it is important to emphasize keeping the crutch tips dry to prevent slipping while bearing weight on them. Moisture on the crutch tips can lead to accidents. Therefore, the correct answer is to dry the crutch tips with a paper towel if they become wet. Choice A, placing the majority of body weight on the axilla, is incorrect as the weight should be borne through the hands, not the axilla, to avoid nerve damage. Choice C, using the crutches to lift both feet simultaneously when ascending stairs, is incorrect as the client should ascend stairs by placing weight on the unaffected leg first, followed by the crutches and then the affected leg. This method provides stability and safety during stair climbing.
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