A client receiving mechanical ventilation has a pH of 7.26, PaCO2 of 68 mm Hg, and a PaO2 of 92 mm Hg. Which intervention should the nurse implement?
Decrease expiratory flow time.
Decrease expiratory pressure.
Increase rate of ventilation.
Increase ventilator tidal volume.
The Correct Answer is C
The correct answer is choice C: Increase rate of ventilation.
Choice A rationale:
Decreasing expiratory flow time would not directly address the elevated PaCO2 levels. This intervention is more related to managing expiratory phase issues rather than correcting respiratory acidosis.
Choice B rationale:
Decreasing expiratory pressure might help with certain ventilation issues, but it does not specifically target the elevated PaCO2 and resulting acidosis.
Choice C rationale:
Increasing the rate of ventilation helps to blow off more CO2, thereby reducing PaCO2 levels and correcting the respiratory acidosis indicated by the pH of 7.26 and PaCO2 of 68 mm Hg.
Choice D rationale:
Increasing the ventilator tidal volume could also help reduce PaCO2 by increasing the amount of air exchanged with each breath. However, increasing the rate of ventilation is generally a more immediate and effective intervention for acute respiratory acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
This statement is incorrect. Antihypertensive drugs typically work by reducing blood pressure through various mechanisms, such as dilating blood vessels, reducing blood volume, or affecting the heart's workload. They do not increase blood flow to the heart and kidneys.
Choice B rationale:
This is the correct answer. Antihypertensive drugs work by affecting different aspects of the cardiovascular system, such as reducing blood vessel constriction (vasodilation), decreasing blood volume, or slowing the heart rate. By affecting these components, they can lower blood pressure.
Choice C rationale:
This statement is incorrect. Antihypertensive drugs can interact with other medications or supplements, potentially causing adverse effects or drug interactions. It's essential for the client to inform their healthcare provider of all medications and supplements they are taking to ensure safe and effective treatment.
Choice D rationale:
This statement is incorrect. Antihypertensive drugs do not cure hypertension but help control it. Clients need to understand that they will likely need to take these medications long-term to manage their blood pressure effectively.
Correct Answer is ["A","B","D"]
Explanation
Choice A rationale:
Slower reaction time is a common age-related change in the neurological system. The processing of sensory information and response time may become slower in older adults due to changes in neural pathways and decreased neurotransmitter activity.
Choice B rationale:
Older adults may experience some difficulty with learning new things due to changes in cognitive function and neural plasticity. This is a common age-related effect on the neurological system.
Choice C rationale:
This statement is incorrect. Older adults typically have fewer neurotransmitters in their brains as they age, which can contribute to cognitive changes and a decline in cognitive function.
Choice D rationale:
Loss of some sense of smell and taste is an age-related change. Older adults may experience a decreased ability to detect and differentiate smells and tastes due to changes in olfactory and gustatory receptors.
Choice E rationale:
This statement is incorrect. Aging does not necessarily lead to an increase in oxygen delivery to brain cells. In fact, there may be a decrease in cerebral blood flow with age in some individuals.
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