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
Choice A rationale:
The client's statement, "I should avoid foods that are high in vitamin K," indicates an understanding of the medication. Warfarin is an anticoagulant medication that works by inhibiting vitamin K-dependent clotting factors. Consistent intake of vitamin K-containing foods helps maintain a stable INR (International Normalized Ratio) and warfarin's effectiveness. Clients on warfarin should be educated about avoiding drastic changes in their vitamin K intake.
Choice B rationale:
Taking warfarin with food or on an empty stomach doesn't significantly impact its efficacy. Therefore, this statement is not indicative of the client's understanding of the medication.
Choice C rationale:
The statement "I should report any unusual bleeding or bruising to my provider" is important but doesn't specifically reflect an understanding of warfarin. It's a general caution for anyone taking anticoagulants.
Choice D rationale:
While it's important to avoid excessive use of medications like aspirin that can increase the risk of bleeding, this statement doesn't directly demonstrate an understanding of warfarin itself.
Correct Answer is D
Explanation
The correct answer is d. hypovolemic.
Choice A reason: This is not a good choice. Septic shock is a type of distributive shock that occurs when an infection causes a systemic inflammatory response that leads to vasodilation, hypotension, and organ dysfunction. Septic shock is not the most common type of shock in children, although it can be a serious and life-threatening condition.
Choice B reason: This is not a good choice. Anaphylactic shock is a type of distributive shock that occurs when an allergic reaction causes a severe and rapid hypersensitivity response that leads to bronchoconstriction, angioedema, and hypotension. Anaphylactic shock is not the most common type of shock in children, although it can be a medical emergency that requires immediate treatment.
Choice C reason: This is not a good choice. Distributive shock is a broad category of shock that occurs when there is a loss of vascular tone and blood volume distribution that leads to hypoperfusion and tissue hypoxia. Distributive shock can be caused by various factors, such as sepsis, anaphylaxis, neurogenic injury, or adrenal insufficiency. Distributive shock is not the most common type of shock in children, although it can be a complex and challenging condition to manage.
Choice D reason: This is the correct choice. Hypovolemic shock is the most common type of shock in children. Hypovolemic shock occurs when there is a loss of blood or fluid volume that leads to decreased preload, cardiac output, and blood pressure. Hypovolemic shock can be caused by various factors, such as hemorrhage, dehydration, vomiting, diarrhea, or burns. Hypovolemic shock can be a life-threatening condition that requires prompt fluid resuscitation and correction of the underlying cause.
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