NCLEX-PN
NCLEX PN Exam Cram
1. A mother brings her 13-month-old child with Down Syndrome to a pediatric clinic reporting muscle weakness and poor movement. The child's reflexes are noted to be diminished. Which action should the nurse take first?
- A. Contact the physician immediately
- B. Have the patient go for an X-ray for a c-spine work-up
- C. Start an IV on the patient
- D. Position the child's neck in a neutral position
Correct answer: D
Rationale: In a child with Down Syndrome presenting with muscle weakness and diminished reflexes, an atlanto-axial dislocation is a concern. The priority action is to position the child's neck in a neutral c-spine posture to prevent further injury. This should be done before any movement or manipulation. Contacting the physician should follow to ensure appropriate evaluation and management. Initiating an IV is not indicated unless specifically ordered for a medical reason. Ordering an X-ray for a c-spine work-up should not be the first action as it may involve movement that could exacerbate the condition if an injury is present.
2. A client with asthma develops respiratory acidosis. Based on this diagnosis, what should the nurse expect the client's serum potassium level to be?
- A. normal
- B. elevated
- C. low
- D. unrelated to the pH
Correct answer: B
Rationale: In respiratory acidosis, the body retains CO2, leading to increased hydrogen ion concentration and a drop in blood pH. As pH decreases, serum potassium levels increase due to the movement of potassium out of cells to compensate for the acidosis. Elevated serum potassium levels are expected in respiratory acidosis. Choice A ('normal') is incorrect because potassium levels are expected to be elevated in respiratory acidosis. Choice C ('low') is incorrect as potassium levels rise in this condition. Choice D ('unrelated to the pH') is incorrect as serum potassium levels are directly impacted by changes in pH in respiratory acidosis.
3. Which symptoms is the client who overdosed on barbiturates most likely to exhibit?
- A. Bradypnea and bradycardia
- B. Hyperthermia and drowsiness
- C. Hyperreflexia and slurred speech
- D. Tachycardia and psychosis
Correct answer: A
Rationale: The correct answer is bradypnea and bradycardia. Barbiturates are central nervous system (CNS) depressants, which will slow down the respiratory rate (bradypnea) and heart rate (bradycardia). Choice B, hyperthermia and drowsiness, is incorrect as barbiturate overdose typically does not cause hyperthermia but rather hypothermia. Hyperreflexia and slurred speech (Choice C) are more indicative of stimulant overdoses rather than CNS depressants like barbiturates. Tachycardia and psychosis (Choice D) are also not typically seen in barbiturate overdose, as these drugs tend to depress the CNS rather than cause symptoms of increased heart rate or psychosis.
4. A healthcare professional is reviewing a patient's arterial blood gas values. Which of the following conditions apply under the following values? pH- 7.49 Bicarbonate ion 24 mEq/dl PaCO2 - 31 mmHg PaO2 - 52 mmHg FiO2 - 0.22
- A. respiratory acidosis
- B. respiratory alkalosis
- C. metabolic acidosis
- D. metabolic alkalosis
Correct answer: B
Rationale: The given blood gas values indicate respiratory alkalosis. A high pH and low PaCO2 level are consistent with respiratory alkalosis. In this scenario, no compensation for the alkalosis is noted, ruling out metabolic acidosis or alkalosis. Metabolic conditions would usually involve changes in bicarbonate levels, which remain within the normal range in this case.
5. A client returns to the nursing unit post-thoracotomy with two chest tubes in place connected to a drainage device. The client's spouse asks the nurse about the reason for having two chest tubes. The nurse's response is based on the knowledge that the upper chest tube is placed to:
- A. Remove air from the pleural space
- B. Create access for irrigating the chest cavity
- C. Evacuate secretions from the bronchioles and alveoli
- D. Drain blood and fluid from the pleural space
Correct answer: A
Rationale: The correct answer is 'Remove air from the pleural space.' When a client has two chest tubes in place post-thoracotomy, the upper chest tube is typically positioned to remove air from the pleural space. Air rises, so placing the tube at the top allows for efficient removal of air that has accumulated in the pleural cavity. Choice B, creating access for irrigating the chest cavity, is incorrect as chest tubes are not primarily used for irrigation. Choice C, evacuating secretions from the bronchioles and alveoli, is incorrect as chest tubes are not designed for this purpose. Choice D, draining blood and fluid from the pleural space, is also incorrect as the upper chest tube in this scenario is specifically for removing air, not blood or fluid.
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