100 mL fluid is given to patient and patient's CVP is 3 mm Hg, then what is the next intervention?

Appeared in: Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)

Explanation

A Central Venous Pressure (CVP) of 3 mm Hg is on the low side of the normal range (typically 2-8 mm Hg).
Low CVP values are indicative of hypovolemia, which is a state of decreased blood volume.
The primary treatment for hypovolemia is to restore the circulating fluid volume.
Therefore, administering more intravenous fluids is the appropriate and necessary next intervention to improve the patient's fluid status.

Option B: Restricting fluids is the intervention for hypervolemia (fluid overload), which would be indicated by a high CVP (e.g., greater than 8-10 mm Hg).
Option C: Doing nothing is inappropriate because a CVP of 3 mm Hg is a clinical sign that points towards a fluid deficit that needs to be addressed to prevent potential complications of hypovolemia, such as decreased organ perfusion.
Option D: This option is incorrect because a clear and appropriate intervention exists.

Clinical Relevance

Nursing practice connection: Use the key finding related to Interpretation of Central Venous Pressure (CVP) and fluid resuscitation to guide bedside assessment, documentation, and the next nursing action.
CVP monitoring is a fundamental skill in critical care nursing used to guide fluid resuscitation and prevent complications like fluid overload or inadequate tissue perfusion.
Accurate interpretation of CVP allows nurses to make timely interventions, such as adjusting IV fluid rates or notifying the physician of significant changes, which directly impacts patient outcomes.
What if? If the patient's CVP was 12 mm Hg after the 100 mL fluid bolus, the next intervention would be to stop or restrict fluids and notify the provider, as this high reading would suggest fluid overload or poor cardiac function.

How to Approach the Question

First, identify the key clinical value provided in the question: CVP is 3 mm Hg.
Recall the normal range for CVP (typically 2-8 mm Hg).
Compare the patient's value to the normal range. A value of 3 mm Hg is on the low end.
Understand the physiological meaning of a low CVP, which is hypovolemia or decreased preload.
Determine the correct intervention for hypovolemia, which is fluid administration.
Evaluate the given options and select the one that matches the correct intervention.

Concept Tested & Keywords

Concept Tested: Interpretation of Central Venous Pressure (CVP) and fluid resuscitation.
Stem keywords: CVP, 3 mm Hg, fluid, intervention
Lead-in keywords: next intervention
Clinical cues: CVP of 3 mm Hg: This value is on the low end of the normal range, suggesting the patient is leaning towards hypovolemia.

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E6 Medicine Davidson Principles Practice 24e p. 226-228

E6 Medicine Harrison 22e Part 2 p. 197-199

E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 67-69

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