A nurse is caring for a client who has respiratory failure due to ventilation-perfusion (V/Q) mismatch. The nurse should recognize that the client most likely has which of the following conditions?
Flail chest
Emphysema
Congestive heart failure
Guillain-Barré syndrome
None
None
The Correct Answer is B
Choice A Reason:
Flail chest is incorrect. Flail chest is a condition characterized by multiple rib fractures, causing instability in the chest wall. While it can lead to respiratory distress, it doesn't directly cause ventilation-perfusion (V/Q) mismatch. Instead, it impairs the mechanics of breathing by compromising chest wall integrity.
Choice B Reason:
Emphysema is a chronic obstructive pulmonary disease (COPD) where the alveolar walls are destroyed, leading to a loss of surface area for gas exchange. This results in areas of the lungs that are well-perfused but poorly ventilated, causing a V/Q mismatch. The damage to alveoli leads to impaired ventilation, while blood flow may still be adequate, leading to hypoxemia (low oxygen levels in the blood).
Choice C Reason:
CHF primarily affects the heart’s ability to pump blood effectively, leading to pulmonary congestion and impaired gas exchange. However, it typically causes diffusion defects rather than a direct ventilation-perfusion mismatch. V/Q mismatch may occur secondary to pulmonary edema, but it’s not the primary mechanism of respiratory failure in CHF.
Choice D Reason:
Guillain-Barré syndrome is incorrect. Guillain-Barré syndrome (GBS) is a neurological disorder that affects the peripheral nervous system, leading to muscle weakness and paralysis. While respiratory muscle weakness can occur in GBS, it doesn't directly cause ventilation-perfusion (V/Q) mismatch. GBS primarily affects nerve function rather than lung function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Manual wheelchair is inappropriate. A manual wheelchair requires the use of the client's upper extremities to propel the wheelchair forward by pushing on the wheels. With a spinal cord injury at the fourth cervical level, the client may have limited or no function in their upper extremities, making it difficult to self-propel a manual wheelchair.
Choice B Reason:
Sip-and-puff device is appropriate. A sip-and-puff device allows individuals with limited or no hand function to control a powered wheelchair using their breath. This device enables the client to navigate the wheelchair by inhaling or exhaling into a straw-like device, which activates controls to move the wheelchair forward, backward, and turn.
Choice C Reason:
Drive-adapted wheelchair is inappropriate. A drive-adapted wheelchair is a powered wheelchair that can be modified with adaptive controls to accommodate individuals with limited hand function or mobility. These wheelchairs may include joystick controls, head arrays, chin controls, or other adaptive devices that allow the client to operate the wheelchair independently despite limited hand function.
Choice D Reason:
Ultra-light wheelchairs is inappropriate. Ultra-light wheelchairs are manual wheelchairs that are lightweight and often customized to fit the client's specific needs and preferences. While ultra-light wheelchairs may offer advantages in terms of maneuverability and ease of transportation, they still require sufficient upper extremity function to self-propel the wheelchair.
Correct Answer is ["A","B","D"]
Explanation
Choice A Reason:
"Have you had any nausea and vomiting with your headache?": This question is appropriate. Nausea and vomiting are common symptoms associated with migraines. Asking about these symptoms can help confirm the diagnosis of a migraine headache.
Choice B Reason:
"Are you bothered by the lights in here?" This question is appropriate. Sensitivity to light, known as photophobia, is a classic symptom of migraines. Inquiring about light sensitivity can provide additional evidence for the diagnosis.
Choice C Reason:
"Have you noticed any confused or cloudy thinking?". This question is inappropriate. Confusion or cognitive symptoms are not typical of migraines. However, some individuals may experience difficulty concentrating or cognitive symptoms during a migraine aura. This question may help assess for aura symptoms.
Choice D Reason
Have you experienced or are you experiencing any strange smells?" This question is appropriate. Some individuals may experience olfactory hallucinations or sensitivity to odors during a migraine aura. Asking about strange smells can help identify possible aura symptoms.
Choice E Reason:
"Did you feel weak before the headache started or do you feel weak now?" This question is inappropriate. While weakness is not a typical symptom of migraines, some individuals may experience fatigue or muscle weakness during a migraine attack. This question may help assess the overall impact of the headache on the client.
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