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 patient with acute shortness of breath is admitted to the hospital. Which action should the nurse take during the initial assessment of the patient?

• A. Ask the patient to lie down to complete a full physical assessment.
• B. Briefly ask specific questions about this episode of respiratory distress.
• C. Complete the admission database to check for allergies before treatment.
• D. Delay the physical assessment to first complete pulmonary function tests.

Correct answer: B

Rationale: When a patient presents with acute shortness of breath, the initial assessment should focus on gathering specific information relevant to the current episode of respiratory distress. A comprehensive health history or full physical examination can be deferred until the acute distress has been addressed. Asking specific questions helps determine the cause of the distress and guides appropriate treatment. While checking for allergies is important, completing the entire admission database is not a priority during the initial assessment. Likewise, delaying the physical assessment for pulmonary function tests is not recommended as the immediate focus should be on addressing the acute respiratory distress before ordering further diagnostic tests or interventions.

3. A nurse is caring for a client who was recently diagnosed with breast cancer. The oncologist uses the TNM staging system to classify this case as T2, N2, M0. The nurse understands that TNM stands for:

• A. Tumor, Necrosis, Metastasis
• B. Tumor, Node Involvement, Mastectomy
• C. Tumor, Node Involvement, Metastasis
• D. Therapy, Necrosis, Metastasis

Correct answer: B

Rationale: The TNM staging system is a classification system for determining the size and extent of cancerous tissue. The TNM system helps providers to identify the most accurate forms of treatment. The T stands for tumor, the N stands for node involvement, and the M stands for metastasis. Choice A, 'Tumor, Necrosis, Metastasis,' is incorrect because it does not include the node involvement component. Choice B, 'Tumor, Node Involvement, Mastectomy,' is incorrect as it erroneously includes the treatment approach 'Mastectomy' instead of 'Metastasis.' Choice D, 'Therapy, Necrosis, Metastasis,' is incorrect because it includes 'Therapy' instead of the correct component 'Node Involvement.'

4. The laboratory has just called with the arterial blood gas (ABG) results on four patients. Which result is most important for the nurse to report immediately to the health care provider?

• A. pH 7.34, PaO2 82 mm Hg, PaCO2 40 mm Hg, and O2 sat 97%
• B. pH 7.35, PaO2 85 mm Hg, PaCO2 45 mm Hg, and O2 sat 95%
• C. pH 7.46, PaO2 90 mm Hg, PaCO2 32 mm Hg, and O2 sat 98%
• D. pH 7.31, PaO2 91 mm Hg, PaCO2 50 mm Hg, and O2 sat 96%

Correct answer: D

Rationale: The correct answer is D: pH 7.31, PaO2 91 mm Hg, PaCO2 50 mm Hg, and O2 sat 96%. These ABG results indicate uncompensated respiratory acidosis, a critical condition that requires immediate attention. In respiratory acidosis, there is an excess of carbon dioxide in the blood, leading to a decrease in pH. The other options present normal or near-normal ABG values, indicating adequate oxygenation and ventilation. Therefore, these values would not be as urgent to report compared to the patient with respiratory acidosis in option D.

5. The nurse is caring for a 10-year-old upon admission to the burn unit. One assessment parameter that will indicate that the child has adequate fluid replacement is

• A. Urinary output of 30 ml per hour
• B. No complaints of thirst
• C. Increased hematocrit
• D. Good skin turgor around burn

Correct answer: A

Rationale: The correct answer is urinary output of 30 ml per hour. In a 10-year-old child, this level of urinary output is indicative of adequate fluid replacement without suggesting overload. Monitoring urinary output is crucial in assessing fluid balance. Choices B, C, and D are incorrect. No complaints of thirst do not provide a direct assessment of fluid status. Increased hematocrit is a sign of dehydration, not adequate fluid replacement. Good skin turgor around the burn is a general assessment but may not directly reflect the child's overall fluid status.

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