The characteristics of fluid volume deficit includes all except

NHM UP Staff Nurse-2021 Shift-1st

Medical Surgical Nursing

Medium

Appeared in: NHM UP Staff Nurse-2021 Shift-1st

Explanation

Increased central venous pressure (CVP) is a hallmark sign of fluid volume excess (hypervolemia), not deficit.
In fluid volume deficit, there is less blood volume returning to the heart, which is known as decreased preload. This results in a decreased CVP.
CVP is a measurement of the pressure in the vena cava or right atrium and directly reflects the body's fluid volume status.

Option A: This is a classic sign of fluid volume deficit. The loss of interstitial fluid causes the skin to lose its elasticity and demonstrate 'tenting'.
Option B: This is a common sign of fluid volume deficit. A decrease in the total circulating blood volume makes it difficult for the body to maintain blood pressure upon standing, causing a significant drop.
Option C: This can be a sign of fluid volume deficit. Dehydration can impair the body's ability to regulate temperature, often through reduced sweating, which can lead to a mild fever.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Signs and symptoms of fluid volume deficit (hypovolemia) as background academic context rather than a clinical decision trigger.
Accurate assessment of fluid status is a fundamental nursing skill crucial for preventing life-threatening complications like hypovolemic shock or pulmonary edema.
Nurses must diligently monitor intake and output, daily weights, and vital signs, including orthostatic blood pressure, to detect fluid imbalances early.
What if? If the patient had known heart failure, an increased CVP along with shortness of breath and crackles in the lungs would strongly suggest fluid volume excess, requiring diuretic administration rather than fluid replacement.

How to Approach the Question

First, identify the core concept being tested, which is fluid volume deficit.
Recognize the keyword 'except'. This signals that you must find the option that is inconsistent with the condition.
Mentally review the pathophysiology of fluid volume deficit: what are the expected consequences when the body loses significant fluid?
Systematically evaluate each option against your understanding. Ask yourself, 'Is this sign caused by low fluid volume?'
For Option A (Decreased skin turgor): Yes, from dehydration. For Option B (Postural hypotension): Yes, from low blood volume. For Option C (Increased temperature): Yes, from impaired thermoregulation.
For Option D (Increased CVP): No, low volume should cause low pressure. An increased CVP indicates the opposite problem (fluid overload).

Concept Tested & Keywords

Concept Tested: Signs and symptoms of fluid volume deficit (hypovolemia)
Stem keywords: fluid volume deficit, characteristics
Lead-in keywords: except
Negative lead-in flag: The question asks for the characteristic that is NOT present (EXCEPT).

Qf9glZjl0idjReqvk8A-Te

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 1 p. 140-142

E6 Medicine Harrison 22e Part 1 p. 388-390