NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. What is the most appropriate suggestion regarding the diet for an 18-month-old child experiencing mild diarrhea and 'mushy' stools, but tolerating fluids and solid foods?
- A. Applesauce, bananas, wheat toast
- B. Mashed potatoes with baked chicken
- C. Gelatin, strained cabbage, and custard
- D. Fluids only until the 'mushy' stools stop
Correct answer: B
Rationale: For a child with mild diarrhea who is tolerating fluids and solid foods, the most appropriate diet suggestion would be to continue feeding a normal diet to prevent dehydration, reduce stool frequency and volume, and hasten recovery. Foods that are well tolerated during diarrhea include bland but nutritional options like complex carbohydrates (rice, wheat, potatoes, cereals), yogurt with live cultures, cooked vegetables, and lean meats. Mashed potatoes with baked chicken provide a balance of nutrients and are easy on the digestive system. Options A and C contain foods that may worsen diarrhea; applesauce and gelatin can be high in sugars which can exacerbate diarrhea, and cabbage may be hard to digest for some individuals. Option D of offering fluids only can affect the child's nutritional status by not providing enough essential nutrients during the recovery period.
2. A patient in metabolic alkalosis is admitted to the emergency department, and pulse oximetry indicates that the O2 saturation is 94%. Which action should the nurse take next?
- A. Administer bicarbonate.
- B. Complete a head-to-toe assessment.
- C. Place the patient on high-flow oxygen.
- D. Obtain repeat arterial blood gases (ABGs).
Correct answer: C
Rationale: In a patient with metabolic alkalosis and an O2 saturation of 94%, placing the patient on high-flow oxygen is the correct action. Even though the O2 saturation seems adequate, metabolic alkalosis causes a left shift in the oxyhemoglobin dissociation curve, reducing oxygen delivery to tissues. Therefore, providing high-flow oxygen can help compensate for this. Administering bicarbonate would exacerbate the alkalosis. While completing a head-to-toe assessment and obtaining repeat ABGs are important interventions, the priority in this scenario is to improve oxygen delivery by placing the patient on high-flow oxygen.
3. A client in the ICU has been intubated and placed on a ventilator. The physician orders synchronous intermittent mandatory ventilation (SIMV). Which statement best describes the work of this mode of ventilation?
- A. The ventilator delivers a set rate and tidal volume regardless of whether the client is attempting to breathe
- B. The ventilator coordinates delivered breaths with the client's respiratory efforts
- C. The ventilator provides a supplemental breath for every third breath of the client
- D. The ventilator provides breaths during the expiratory phase of the client's respirations
Correct answer: B
Rationale: Synchronous intermittent mandatory ventilation (SIMV) is a ventilation mode that coordinates delivered breaths with the client's own respiratory efforts. This mode allows the client to initiate breaths, with the ventilator providing preset breaths at a controlled rate and volume. Option A is incorrect because in SIMV, the ventilator syncs with the client's respiratory efforts. Option C is incorrect as it does not accurately depict the way SIMV works. Option D is also incorrect as SIMV does not specifically provide breaths during the expiratory phase of the client's respirations. Therefore, the correct answer is B, where the ventilator coordinates breath delivery with the client's breathing efforts.
4. A client had a closed reduction of a fractured right wrist followed by the application of a fiberglass cast 12 hours ago. Which finding requires immediate attention?
- A. Capillary refill of fingers on right hand is 3 seconds
- B. Skin warm to touch and normally colored
- C. Client reports prickling sensation in the right hand
- D. Slight swelling of fingers of right hand
Correct answer: C
Rationale: A prickling sensation in the right hand is indicative of compartment syndrome, a serious condition that can lead to tissue damage and impaired circulation. Immediate attention is required to prevent complications. Capillary refill of 3 seconds, warm and normally colored skin, and slight swelling of fingers are expected findings after a closed reduction and casting. These findings do not typically indicate a critical issue and can be managed with routine monitoring.
5. How does shock typically progress?
- A. Compensated to hypotensive shock in hours and hypotensive shock to cardiac arrest in minutes
- B. Compensated to hypotensive shock in minutes and hypotensive shock to cardiac arrest in hours
- C. Hypotensive to compensated shock in hours and compensated shock to cardiac arrest in minutes
- D. Hypotensive to compensated shock in minutes and compensated shock to cardiac arrest in hours
Correct answer: A
Rationale: Shock typically progresses from a compensated state to hypotensive shock over a period of hours. In the compensated phase, the body is trying to maintain perfusion. It is crucial to identify and intervene during this phase to prevent progression to hypotensive shock, where blood pressure drops significantly. If not promptly managed, hypotensive shock can rapidly deteriorate into cardiac arrest in minutes due to inadequate perfusion to vital organs. Choices B, C, and D are incorrect as they do not follow the typical progression of shock stages as seen in clinical practice. Understanding the stages of shock and their timeframes is crucial for early recognition and appropriate intervention to prevent further deterioration.
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