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","D"]
Explanation
Choice A Reason:
Pupillary dilation is correct. Pupillary changes can indicate neurological dysfunction following a head injury. Dilated pupils may suggest increased intracranial pressure or damage to specific brain structures.
Choice B Reason:
Persistent headache is correct .Headaches are a common symptom following a head injury. Persistent or worsening headaches can indicate ongoing neurological issues and should be monitored closely.
Choice C Reason:
Presence of hand tremors is incorrect. Hand tremors are not typically associated with loss of consciousness following a motor vehicle accident. While hand tremors can occur in various conditions, such as essential tremor or Parkinson's disease, they are not typically a direct manifestation of a head injury. The primary concern immediately following a motor vehicle accident with loss of consciousness is assessing for signs of neurological dysfunction, such as altered level of consciousness, pupillary changes, and persistent headache. Hand tremors may be assessed in other contexts, but they are not directly related to the immediate assessment of a client following a motor vehicle accident with loss of consciousness.
Choice D Reason:
Difficulty waking is correct. Difficulty waking or altered level of consciousness can indicate neurological impairment and may be indicative of a concussion or other brain injury.
E. Foot drop is incorrect. Foot drop refers to difficulty lifting the front part of the foot, which can cause dragging of the foot or toes along the ground while walking. While foot drop can result from various neurological conditions or injuries, it is not typically associated with loss of consciousness following a motor vehicle accident. Loss of consciousness after a motor vehicle accident is more indicative of potential head trauma or concussion, which may present with symptoms such as altered level of consciousness, headache, pupillary changes, or difficulty waking. Foot drop would be more relevant to assess in contexts related to peripheral nerve injury, spinal cord injury, or neurological conditions affecting the lower extremities. Given the scenario provided, foot drop is not a typical manifestation that the nurse would assess for immediately following a motor vehicle accident with loss of consciousness. Therefore, option E is not relevant in this scenario.
Correct Answer is ["A","B","C","D"]
Explanation
Choice A Reason:
Chronic cough is correct. Persistent cough is a common symptom of COPD, often occurring due to irritation and inflammation in the airways.
Choice B Reason:
Sputum production is correct. COPD patients frequently experience increased mucus production, leading to coughing up phlegm or sputum, especially in the morning.
Choice C Reason:
Dyspnea is correct. Shortness of breath or dyspnea is a hallmark symptom of COPD, particularly during physical activity or exertion, and it tends to worsen as the disease progresses.
Choice D Reason:
Wheezing occurs due to narrowed airways and increased airway resistance. It is more noticeable during expiration but can also be present during inspiration in severe cases.
Choice E Reason:
Chest tightness is incorrect. While chest tightness can occur in COPD, it is typically more associated with asthma. However, some individuals with COPD may experience chest tightness, especially during exacerbations or when airflow is significantly limited.
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