NCLEX-RN
NCLEX RN Exam Preview Answers
1. 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.
2. Each small square on the EKG paper is:
- A. 0.04 seconds long and 5mm tall
- B. 0.2 seconds long and 5mm tall
- C. 0.04 seconds long and 20mm tall
- D. 0.04 seconds long and 1mm tall
Correct answer: D
Rationale: Each small square on an EKG paper represents 0.04 seconds long and 1mm tall. This standardization is essential for accurate measurements. One large square on EKG paper consists of 5 small squares in length and 5 small squares in height, which equals 0.2 seconds long and 5mm tall (0.5 mV). Choice A is incorrect because while the duration is correct, the height mentioned is not accurate. Choice B is incorrect as it provides the correct height but the duration is inaccurate. Choice C is incorrect as the height mentioned is exaggerated, and the duration is correct but the height is not. Therefore, the correct answer is 0.04 seconds long and 1mm tall.
3. A healthcare professional is preparing to administer a dose of platelets to a client. Which of the following actions must the healthcare professional perform before giving the platelets?
- A. Start an IV of 0.9% Normal Saline to administer with the platelets
- B. Ensure the container with the platelets is intact and not damaged
- C. Verify the client's identity using two unique identifiers
- D. Check the client's chart to ensure no contraindications to platelet transfusion
Correct answer: B
Rationale: Before administering platelets, it is crucial to check the integrity of the container holding the blood product. An intact container ensures the sterility and safety of the platelets, minimizing the risk of contamination or infection. Option A is incorrect as administering platelets typically does not require starting a new IV line unless indicated for the specific patient. Option C is not the priority as verifying the client's identity can be done at any point during the administration process but is not specific to the platelet transfusion itself. Option D, checking the client's chart for antibiotic use, is not directly related to ensuring the safety of the blood product container.
4. The healthcare professional notices that a colleague is preparing to check the blood pressure of a patient who is obese by using a standard-sized blood pressure cuff. How would this likely affect the blood pressure reading?
- A. Yield a falsely low blood pressure
- B. Yield a falsely high blood pressure
- C. Be the same, regardless of cuff size
- D. Vary as a result of the technique of the person performing the assessment
Correct answer: B
Rationale: Using a cuff that is too narrow for an obese patient would likely yield a falsely high blood pressure reading. This occurs because the standard cuff is too small for the arm's circumference, requiring more pressure to compress the artery. A tight cuff can lead to inaccurate and elevated blood pressure readings. Choices A, C, and D are incorrect because using an improperly sized cuff would not yield a falsely low blood pressure, the blood pressure reading does vary with cuff size, and the technique of the person performing the assessment is not the primary factor affecting the reading in this situation.
5. Nursing care plans contain which of the following?
- A. nursing diagnoses
- B. medical diagnoses.
- C. MD orders.
- D. intake and output forms
Correct answer: A
Rationale: Nursing care plans are legal documents that contain nursing diagnoses, such as an "Alteration of respiratory function". They also contain patient goals and nursing interventions.
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