A nurse is caring for a client who has a pulmonary embolism. The nurse should identify that the release of inflammatory mediators leads to which of the following pathologic findings?
Decreased pulmonary vascular resistance
Hypercapnia
Hypoventilation
Respiratory alkalosis
The Correct Answer is D
Correct answer: D
Choice A Reason:
Decreased pulmonary vascular resistance is incorrect. Inflammatory mediators released in response to a pulmonary embolism can lead to vasoconstriction and increased pulmonary vascular resistance. This is part of the body's response to redirect blood flow away from the affected area of the lung and maintain adequate perfusion to other areas.
Choice B Reason:
Hypercapnia is incorrect. Hypercapnia refers to elevated levels of carbon dioxide (CO2) in the blood. Hypocapnia usually is present with embolism; hypercapnia, on the other hand, is rare.
Choice C Reason:
Hypoventilation is incorrect. Hypoventilation occurs when there is inadequate ventilation of the lungs relative to metabolic demands. In the context of a pulmonary embolism, hypoventilation can occur due to factors such as pain, respiratory muscle fatigue, or impaired gas exchange, all of which can be influenced by the release of inflammatory mediators.
Choice D Reason:
Respiratory alkalosis is correct. In response to the blockage and the resulting inflammation, the body often increases the respiratory rate as a compensatory mechanism to maintain adequate oxygen levels and remove carbon dioxide. Due to the increased breathing rate, there is excessive exhalation of carbon dioxide, leading to a decrease in the partial pressure of CO2 in the blood. This results in an increase in blood pH, causing respiratory alkalosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","E"]
Explanation
Choice A Reason:
Spinal cord injuries can disrupt the autonomic nervous system, impairing the body's ability to regulate temperature (thermoregulation). This can lead to temperature sensitivity, with clients experiencing issues such as difficulty sweating, shivering, or adapting to extreme temperatures.
Choice B Reason:
Contractures, which are the shortening and tightening of muscles, tendons, or ligaments, can occur as a complication of spinal cord injuries. Immobility and spasticity commonly seen in SCI can contribute to the development of contractures.
Choice C Reason:
Sexual dysfunction is a common complication of spinal cord injuries. SCI can affect sexual function and reproductive health due to changes in sensation, mobility, and autonomic nervous system function.
Choice D Reason:
Disc degeneration, or degenerative disc disease, typically occurs as a result of aging and wear and tear on the spinal discs. While SCI may lead to changes in spinal alignment and biomechanics, it is not a direct cause of disc degeneration.
Choice E Reason:
Urinary tract infections (UTIs) are a common complication of spinal cord injuries. Neurogenic bladder dysfunction, which is common in SCI, can lead to urinary retention, incomplete bladder emptying, and urinary stasis, increasing the risk of UTIs.
Correct Answer is ["B","C","D"]
Explanation
Choice A Reason:
Hyponatremia is incorrect. Hyponatremia refers to low sodium levels in the blood and is not typically associated with degenerative disc disease. This finding is unrelated to the pathophysiology of DDD.
Choice B Reason:
Paresthesia is correct. Yes, paresthesia, which refers to abnormal sensations such as tingling, numbness, or burning, can develop with degenerative disc disease. Nerve compression or irritation due to disc degeneration can lead to paresthesia in the affected area, typically radiating along the nerve pathway.
Choice B Reason:
Foot drop is correct. Yes, foot drop can develop with degenerative disc disease, especially if the condition leads to nerve compression or damage in the lumbar spine (lower back). Foot drop refers to difficulty lifting the front part of the foot due to weakness or paralysis of the muscles involved in dorsiflexion.
Choice D Reason:
Intermittent pain is correct. Yes, intermittent pain is a hallmark symptom of degenerative disc disease. Pain may vary in intensity and may worsen with certain movements or activities. Individuals with DDD may experience episodes of acute pain, as well as chronic, persistent discomfort.
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