Nursing Elites

1. What is the primary function of surfactant in the lungs?

• A. Reduce surface tension
• B. Enhance oxygen absorption
• C. Facilitate carbon dioxide release
• D. Increase lung volume

Correct answer: A

Rationale: The primary function of surfactant in the lungs is to reduce surface tension in the alveoli. This reduction in surface tension prevents lung collapse and allows for easier breathing. It is particularly crucial in premature infants to help with lung expansion. Choice B is incorrect because surfactant primarily affects surface tension, not oxygen absorption. Choice C is incorrect because surfactant's main role is not in facilitating carbon dioxide release. Choice D is incorrect because surfactant does not directly increase lung volume; its main role is in reducing surface tension.

2. A full-term, 24-hour-old infant in the nursery regurgitates and suddenly turns cyanotic. Which immediate intervention should the PN implement?

• A. Stimulate the infant to cry
• B. Give oxygen by positive pressure
• C. Suction the oral and nasal passages
• D. Turn the infant onto the right side

Correct answer: C

Rationale: Suctioning the oral and nasal passages is the correct immediate intervention in this scenario. Regurgitation leading to cyanosis indicates a potential airway obstruction, which requires prompt action to clear. Stimulating the infant to cry (Choice A) may not address the underlying issue of airway obstruction. Giving oxygen by positive pressure (Choice B) can be beneficial, but clearing the airway obstruction takes precedence. Turning the infant onto the right side (Choice D) does not directly address the need to clear the airway.

3. A client is admitted to the postoperative surgical unit with two test tubes after a left lobectomy. The nurse observed that the chambers are set at the prescribed suction of 20 cm water pressure, and tidying occurs with respirations and bubbling. What action should the nurse implement?

• A. Clamp the chest tube to see if the bubbling activity stops
• B. Notify the registered nurse of the observed bubbling
• C. Maintain system integrity to promote lung reexpansion
• D. Apply an occlusive dressing to the chest

Correct answer: C

Rationale: Maintaining system integrity is essential to promote lung reexpansion in postoperative patients with chest tubes. Clamping the chest tube abruptly can lead to tension pneumothorax, a life-threatening condition. The bubbling observed is a normal sign indicating that the system is functioning correctly, as it allows the drainage of air or fluid from the pleural space. Notifying the registered nurse may be necessary if there are significant concerns or changes observed, but the immediate action should be to ensure system integrity and lung reexpansion.

4. A dispersion consists of a solute dispersed through a dispersing vehicle. Which of the following dispersions is a liquid for topical application that contains insoluble solids or liquids?

• A. Ointment
• B. Lotion
• C. Paste
• D. Gel

Correct answer: B

Rationale: The correct answer is B, 'Lotion.' A lotion is a liquid dispersion that contains insoluble solids or liquids for topical application. Ointments are more semi-solid and occlusive, pastes are thicker and contain higher concentrations of solids, and gels have a jelly-like consistency due to their three-dimensional network structure. Therefore, among the options, a lotion is the most suitable choice for containing insoluble solids or liquids for topical application.

5. When assisting an older male client recovering from a stroke to ambulate with a cane, where should the nurse place the cane in relation to the client's body?

• A. In front of the body to lean on while stepping forward
• B. On the opposite side of the affected extremity
• C. Approximately one foot away from the body to stabilize balance
• D. On the same side as the affected extremity

Correct answer: B

Rationale: The correct answer is B: 'On the opposite side of the affected extremity.' Placing the cane on the opposite side of the affected extremity provides maximum support and stability during ambulation for a client recovering from a stroke. This positioning helps to offload weight from the affected side and improves balance. Choice A is incorrect because placing the cane in front of the body can lead to incorrect weight distribution and instability. Choice C is incorrect as placing the cane one foot away from the body may not provide adequate support and can compromise balance. Choice D is incorrect as placing the cane on the same side as the affected extremity does not offer the necessary balance and support needed for safe ambulation.

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