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 ["B","D","E","F"]
Explanation
Choice A Reason:
Client responds to name is incorrect. Responding to one's name is a positive sign indicating consciousness and orientation. It suggests that the client's level of consciousness is relatively intact.
Choice B Reason:
Eyes open to painful stimuli is correct. Opening the eyes in response to painful stimuli is a concerning sign, indicating a decrease in consciousness and potentially worsening neurological status. It suggests that the client's level of arousal is diminishing and may indicate a decline in condition.
Choice C Reason:
Client states day of the week is correct. Oriented behavior, such as knowing the day of the week, is a positive sign indicating intact cognition and orientation. It suggests that the client's mental status is relatively preserved.
Choice D Reason:
Client is confused is correct. Confusion is a concerning sign, indicating altered mental status and potentially worsening neurological function. It suggests that the client's cognition is impaired, which may be indicative of a decline in condition.
Choice E Reason:
Client mumbles inappropriate words is correct. Mumbling inappropriate words suggests disorientation and altered mental status, which are concerning signs indicating a decline in neurological function.
Choice F Reason:
Eyes do not open to name is incorrect. Failure to open the eyes in response to verbal stimuli, such as one's name, is a concerning sign indicating a decrease in consciousness and potentially worsening neurological status. It suggests that the client's level of arousal is diminished and may indicate a decline in condition.
Correct Answer is B
Explanation
Choice A Reason:
Prodrome is incorrect. The prodrome phase occurs before the onset of the headache and can last for hours to days. During this phase, individuals may experience subtle changes that serve as warning signs of an impending migraine attack. Common prodromal symptoms include fatigue, mood changes, food cravings, increased thirst, and heightened sensitivity to light or sound. Tingling of the face and blind spots in the eyes are not typically associated with the prodrome phase.
Choice B Reason:
Aura is correct. The aura phase of a migraine typically occurs before or during the headache phase and involves neurological symptoms. Aura symptoms can include visual disturbances such as blind spots, zigzag lines, or flashing lights, as well as sensory symptoms like tingling or numbness, often starting in one part of the body and spreading gradually. The tingling of the face and blind spots in the eyes described by the client are consistent with the aura phase of a migraine.
Choice C Reason:
Postdrome is incorrect. The postdrome phase occurs after the headache phase and can last for hours to days. During this phase, individuals may experience lingering symptoms such as fatigue, difficulty concentrating, mood changes, and muscle aches. While some individuals may experience visual disturbances during the postdrome phase, the tingling of the face and blind spots in the eyes described by the client are more characteristic of the aura phase.
Choice D Reason:
Headache is incorrect. The headache phase of a migraine is characterized by moderate to severe throbbing head pain, often accompanied by other symptoms such as nausea, vomiting, and sensitivity to light or sound. While visual disturbances can occur during the headache phase, the tingling of the face and blind spots in the eyes described by the client precede the onset of headache, suggesting the aura phase rather than the headache phase.
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