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 D
Explanation
The correct answer isChoice D.
Choice A rationale:
Hypertension is not a contraindication for administering clonidine. In fact, clonidine is often used to treat hypertension.It works by decreasing the levels of certain chemicals in your blood, allowing your blood vessels to relax and your heart to beat more slowly and easily.
Choice B rationale:
An apical heart rate of 72 beats/minute is within the normal range (60-100 beats/minute) and would not be a contraindication for administering clonidine.Clonidine can lower heart rate, so it’s important to monitor heart rate, but a normal heart rate does not preclude its use.
Choice C rationale:
Muscle weakness is not a specific contraindication for the use of clonidine. While muscle weakness can be a side effect of many medications, it is not typically associated with clonidine.However, if a patient was experiencing severe or unusual muscle weakness, it would be important for the healthcare provider to evaluate this symptom.
Choice D rationale:
A blood pressure of 90/76 mm Hg could be a contraindication for the use of clonidine. Clonidine is a medication that is used to lower blood pressure, and if a patient’s blood pressure is already low, further lowering it could lead to symptoms such as dizziness, fainting, or even shock.Therefore, it would be important to monitor the patient’s blood pressure closely while they are taking this medication.
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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