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 A
Explanation
When a client refuses to look at their mastectomy incision and refuses to talk about it, the best response by the practical nurse (PN) is to respect the client's autonomy and validate their feelings. Option a) acknowledges the client's discomfort and provides reassurance that it is okay for them to decline looking or talking about the incision at the moment. It also offers support by letting the client know that the incision will be available for examination when they feel ready to do so.
Let's evaluate the other options:
b) "Would you like me to call another nurse to be here while I show you the wound?"
This response assumes that the client needs someone else present to address their refusal to look at the incision. While having another nurse present may be helpful for some clients, it is not the appropriate first response. Respecting the client's autonomy and providing support should be the initial approach.
c) "Part of recovery is accepting your new body image, and you will need to look at your incision."
This response may come across as directive and insensitive. It implies that the client must look at their incision as part of their recovery process, disregarding their feelings and personal choices. It is important to respect the client's autonomy and allow them to navigate their own healing journey at their own pace.
d) "You will feel beter when you see that the incision is not as bad as you may think."
This response invalidates the client's feelings and assumes that their concerns about the incision are unfounded. It is essential to respect the client's emotions and validate their experience rather than dismissing or minimizing their concerns.
In summary, when a client refuses to look at their mastectomy incision and refuses to talk about it, the best response by the practical nurse (PN) is to acknowledge the client's discomfort, respect their autonomy, and provide reassurance that it is okay for them to decline looking or talking about the incision at that moment. The client's readiness to address the incision should be honored, and support should be offered when they are ready.
Correct Answer is D
Explanation
Choice A rationale:
Sinus tachycardia may occur in response to various stressors or physiological conditions but is not directly related to anorexia nervosa or severe malnutrition. It is not the primary pathological process resulting from this condition.
Choice B rationale:
Menstrual cramps are not a pathological process but rather a symptom that may result from hormonal changes or other factors. While amenorrhea (absence of menstrual periods) is a common feature of anorexia nervosa, menstrual cramps are not a primary concern in this context.
Choice C rationale:
Hypertension is not typically associated with anorexia nervosa or severe malnutrition. In fact, individuals with anorexia nervosa often experience hypotension (low blood pressure) due to dehydration and nutritional deficiencies.
Choice D rationale:
Amenorrhea is the primary pathological process resulting from the adolescent's consistent maladaptive behavior of anorexia nervosa. Severe malnutrition and low body weight can disrupt the normal menstrual cycle and lead to amenorrhea. This is a significant concern for individuals with anorexia nervosa and can have long-term health implications.
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