Nursing Elites

1. Which of the following can cause coup-contrecoup injuries?

• A. Rotational forces
• B. Deformation forces
• C. Deceleration forces
• D. Acceleration forces

Correct answer: C

Rationale: Deceleration forces occur when the head is moving and abruptly comes to a stop, such as in a car crash. This sudden deceleration can cause the brain to hit against the skull, resulting in coup-contrecoup injuries. In a coup-contrecoup injury, the brain is damaged on opposite sides due to the initial impact and the rebound effect inside the skull. Rotational forces usually result in diffuse axonal injuries rather than coup-contrecoup injuries. Deformation forces can cause focal brain injuries but not coup-contrecoup injuries. Acceleration forces typically lead to diffuse brain injuries, not coup-contrecoup injuries. Therefore, the correct answer is deceleration forces.

2. A child is hospitalized because of persistent vomiting. The nurse should monitor the child closely for which problem?

• A. Diarrhea
• B. Metabolic acidosis
• C. Metabolic alkalosis
• D. Hyperactive bowel sounds

Correct answer: C

Rationale: In the scenario of persistent vomiting, the child is at risk of developing metabolic alkalosis due to the loss of hydrochloric acid. Vomiting leads to the loss of gastric acid, resulting in an imbalance that causes metabolic alkalosis. Metabolic acidosis is incorrect as it would occur in a child with diarrhea due to the loss of bicarbonate. While diarrhea can sometimes be associated with vomiting, in this case, the primary focus is on the effects of vomiting. Hyperactive bowel sounds are not typically associated with vomiting, making this choice less relevant to the situation described.

3. A healthcare professional is reviewing a patient's chart and notices that the patient suffers from conjunctivitis. Which of the following microorganisms is related to this condition?

• A. Yersinia pestis
• B. Helicobacter pylori
• C. Vibrio cholerae
• D. Haemophilus aegyptius

Correct answer: D

Rationale: The correct answer is Haemophilus aegyptius. Haemophilus influenzae biogroup aegyptius (Hae) is a causative agent of acute and often purulent conjunctivitis, more commonly known as pink eye. Yersinia pestis, Helicobacter pylori, and Vibrio cholerae are not associated with conjunctivitis. Yersinia pestis causes the plague, Helicobacter pylori is associated with gastric ulcers, and Vibrio cholerae causes cholera.

4. Following assessment of a patient with pneumonia, the nurse identifies a nursing diagnosis of ineffective airway clearance. Which assessment data best supports this diagnosis?

• A. Weak, nonproductive cough effort
• B. Large amounts of greenish sputum
• C. Respiratory rate of 28 breaths/minute
• D. Resting pulse oximetry (SpO2) of 85%

Correct answer: A

Rationale: The correct answer is 'Weak, nonproductive cough effort.' A weak, nonproductive cough indicates that the patient is unable to clear the airway effectively, supporting the nursing diagnosis of ineffective airway clearance. In pneumonia, secretions can obstruct the airway, leading to ineffective clearance. Choices B, C, and D do not directly reflect ineffective airway clearance. Large amounts of greenish sputum (Choice B) may suggest infection or inflammation but do not specifically indicate ineffective airway clearance. The respiratory rate of 28 breaths/minute (Choice C) and a resting pulse oximetry (SpO2) of 85% (Choice D) are more indicative of impaired gas exchange or respiratory distress rather than ineffective airway clearance.

5. The nurse is working in a support group for clients with HIV. Which point is most important for the nurse to stress?

• A. They must inform household members of their condition.
• B. They must take their medications exactly as prescribed.
• C. They must abstain from substance use.
• D. They must avoid large crowds.

Correct answer: B

Rationale: The correct answer is that clients with HIV must take their medications exactly as prescribed. Antiretrovirals need to be taken as directed to prevent the development of drug-resistant strains and maintain treatment effectiveness. Missing doses can compromise the effectiveness of future treatments. Choice A, informing household members, is important for social support but not the most critical aspect of managing the condition. Choice C, abstaining from substance use, is important but not as crucial as medication adherence. Choice D, avoiding large crowds, is not directly related to HIV management as long as the individual's immune system is not significantly compromised.

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