NCLEX-RN
NCLEX RN Exam Review Answers
1. A female patient is prescribed metformin for glucose control. The patient is on NPO status pending a diagnostic test. The nurse is most concerned about which side effect of metformin?
- A. Diarrhea and Vomiting
- B. Dizziness and Drowsiness
- C. Metallic taste
- D. Hypoglycemia
Correct answer: D
Rationale: The correct answer is 'Hypoglycemia.' When a patient is on NPO status (nothing by mouth) and prescribed metformin, there is an increased risk of hypoglycemia due to the absence of oral intake. Metformin, as an anti-glycemic drug, can lower blood sugar levels, and without food intake, the risk of hypoglycemia is higher. Diarrhea and vomiting are common gastrointestinal side effects of metformin but are not the main concern in this scenario. Dizziness and drowsiness are potential side effects of some medications but are not typically associated with metformin. Metallic taste is a known side effect of metformin but is not the primary concern in this situation where hypoglycemia is more critical to monitor due to the patient's NPO status.
2. Which of the following statements best describes postural drainage as part of chest physiotherapy?
- A. Tapping on the chest wall to loosen secretions
- B. Squeezing the abdomen to increase expansion of the upper chest
- C. Using gravity to move secretions in the lung tissue
- D. Dilating the trachea to facilitate better release of secretions
Correct answer: C
Rationale: Postural drainage is a technique used in chest physiotherapy for clients with accumulated lung secretions. It involves positioning the client to utilize gravity in moving secretions from the lungs. Choice A, tapping on the chest wall, describes percussion, not postural drainage. Choice B, squeezing the abdomen, is not a correct description of postural drainage. Choice D, dilating the trachea, is not related to postural drainage but may be associated with airway clearance techniques.
3. A nurse is caring for a patient with peripheral vascular disease (PVD). The patient complains of burning and tingling of the hands and feet and cannot tolerate touch of any kind. Which of the following is the most likely explanation for these symptoms?
- A. Inadequate tissue perfusion leading to nerve damage.
- B. Fluid overload leading to compression of nerve tissue.
- C. Sensation distortion due to psychiatric disturbance.
- D. Inflammation of the skin on the hands and feet.
Correct answer: A
Rationale: Patients with the peripheral vascular disease often sustain nerve damage as a result of inadequate tissue perfusion. Ischemic rest pain is more worrisome; it refers to pain in the extremity that is due to a combination of PVD and inadequate perfusion. Ischemic rest pain often is exacerbated by poor cardiac output. The condition is often partially or fully relieved by placing the extremity in a dependent position, so that perfusion is enhanced by the effects of gravity.
4. A patient asks a nurse administering blood how long red blood cells live in the body. What is the correct response?
- A. The life span of RBC is 45 days
- B. The life span of RBC is 60 days
- C. The life span of RBC is 90 days
- D. The life span of RBC is 120 days
Correct answer: D
Rationale: The correct answer is that red blood cells have a lifespan of 120 days in the body. This allows for efficient oxygen transport throughout the circulatory system. Choices A, B, and C are incorrect because the lifespan of red blood cells is actually 120 days. Understanding the lifespan of red blood cells is crucial in assessing various conditions related to blood cell production and turnover.
5. A nurse is caring for a 2-day-old infant who has a bilirubin level of 19 mg/dl. The physician has ordered phototherapy. Which of the following actions indicates correct preparation of the infant for this procedure?
- A. Undress the baby down to a diaper and hat
- B. Place the baby in his mother's arms before turning on the light
- C. Position the phototherapy light approximately 3 inches above the baby's skin
- D. Secure eye protection for the infant without occluding the nose
Correct answer: D
Rationale: Phototherapy is used to treat high levels of bilirubin among infants, typically evidenced as jaundice. The nurse must position the infant carefully during this procedure to maximize the benefits of the light therapy while protecting the baby. Placing protective eyewear over the baby's eyes without covering the nose is crucial to shield the eyes from the ultraviolet light. Undressing the baby down to a diaper and hat (Choice A) is a standard practice to maximize skin exposure to the phototherapy light. Placing the baby in his mother's arms before turning on the light (Choice B) is not necessary for the preparation of the infant for phototherapy. Positioning the phototherapy light approximately 3 inches above the baby's skin (Choice C) is incorrect as the distance should be as recommended by the healthcare provider based on the manufacturer's instructions.
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