Nursing Elites

1. Which brain structure serves as the heat-regulating center?

• A. Hypothalamus
• B. Pituitary Gland
• C. Pons
• D. Medulla Oblongata

Correct answer: A

Rationale: The correct answer is the Hypothalamus. The hypothalamus is responsible for regulating body temperature, ensuring it stays within a narrow range. Moreover, the hypothalamus controls various essential bodily functions, such as hunger, thirst, and circadian rhythms. Choices B, C, and D are incorrect because the Pituitary Gland primarily produces and releases hormones, the Pons is involved in functions like sleep, respiration, and bladder control, and the Medulla Oblongata controls vital functions like breathing and heart rate, but not body temperature regulation.

2. The student observes a patient with no breathing problems. Which action by the student indicates a need to review respiratory assessment skills?

• A. The student starts at the apices of the lungs and moves to the bases.
• B. The student compares breath sounds from side to side, avoiding bony areas.
• C. The student places the stethoscope over the posterior chest and listens during expiration.
• D. The student instructs the patient to breathe slowly and a little more deeply than normal through the mouth.

Correct answer: C

Rationale: The correct answer is C. Listening only during inspiration instead of both inspiration and expiration indicates a need for a review of respiratory assessment skills. During chest auscultation, it is essential to listen to at least one cycle of inspiration and expiration at each placement of the stethoscope. Instructing the patient to breathe slowly and a little deeper than normal through the mouth is a correct practice during auscultation. The correct sequence for lung auscultation is from the apices to the bases, comparing breath sounds bilaterally, avoiding bony areas. It is crucial to place the stethoscope over lung tissue rather than bony prominences to accurately assess lung sounds.

3. When is the best time for the nurse to attempt to elicit the Moro reflex during an infant examination?

• A. When the infant is sleeping
• B. At the end of the examination
• C. Before auscultation of the thorax
• D. At about the middle of the examination

Correct answer: B

Rationale: The Moro reflex, also known as the startle reflex, is best elicited at the end of the examination because it can cause the infant to cry. This reflex is triggered by a sudden change in position or loud noise, and it involves the infant's arms extending and then coming back together as if embracing. By eliciting this reflex at the end of the examination, the nurse can observe the infant's response and ensure that the examination is completed without unnecessary distress. Choices A, C, and D are incorrect because the Moro reflex is typically elicited at the end of the examination to avoid disrupting the assessment process and causing unnecessary discomfort to the infant.

4. Which of the following may represent an upper airway obstruction?

• A. Retractions
• B. Elongated expiratory phase
• C. Stridor
• D. Expiratory wheezing

Correct answer: C

Rationale: Stridor is the sound produced by turbulent airflow through a partially obstructed upper airway. It is a classic sign of upper airway obstruction. While an elongated expiratory phase may indicate lower airway obstruction, stridor specifically points to an upper airway issue. Retractions are also often seen in upper airway obstruction due to the increased effort of breathing. Expiratory wheezing, on the other hand, is more indicative of lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD).

5. After change-of-shift report, which patient should the nurse assess first?

• A. 72-year-old with cor pulmonale who has 4+ bilateral edema in his legs and feet
• B. 28-year-old with a history of a lung transplant and a temperature of 101 F (38.3 C)
• C. 40-year-old with a pleural effusion who is complaining of severe stabbing chest pain
• D. 64-year-old with lung cancer and tracheal deviation after subclavian catheter insertion

Correct answer: D

Rationale: The patient with lung cancer and tracheal deviation after a subclavian catheter insertion should be assessed first. Tracheal deviation can indicate tension pneumothorax, a life-threatening condition that requires immediate intervention to prevent inadequate cardiac output or hypoxemia. While the other patients also need assessment, the potential for tension pneumothorax in the patient with tracheal deviation necessitates urgent attention to prevent complications.

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