In assessing fluid status in a patient with acute kidney injury, which physical finding best indicates fluid… - RRB Nsg. Superintendent -29 April-2025 (shift-2nd)

RRB Nsg. Superintendent -29 April-2025 (shift-2nd)

Medical & Surgical Nursing

Easy

Appeared in: RRB Nsg. Superintendent -29 April-2025 (shift-2nd)

Explanation

Poor skin turgor and dry mucous membranes are classic signs of fluid volume deficit (hypovolemia or dehydration).
Skin turgor, the elasticity of the skin, is reduced when interstitial fluid volume decreases. This causes the skin to 'tent' or return slowly to position after being pinched.
Dryness of the mucous membranes, especially between the cheek and gum, is a reliable indicator of systemic dehydration as the body conserves water by reducing saliva production.
In acute kidney injury, identifying fluid deficit is crucial, especially during the diuretic phase where large volumes of fluid can be lost.

Option B: Periorbital oedema (swelling around the eyes) is a sign of fluid accumulation in the tissues, which indicates fluid volume excess (hypervolemia), not deficit.
Option C: Bibasilar crackles are abnormal lung sounds caused by fluid in the alveoli (pulmonary edema). This is a serious sign of fluid volume excess, not deficit.
Option D: A bounding pulse is a strong, forceful pulse that results from increased circulatory volume. This is a characteristic sign of fluid volume excess (hypervolemia).

Visual 1: Diagram - A diagram illustrating the skin turgor test, showing normal recoil versus 'tenting' in a dehydrated patient.
Visual 2: Photograph - A clinical photograph showing a patient with periorbital edema to contrast with signs of fluid deficit.
Visual 3: Flowchart - A flowchart outlining the assessment steps for determining fluid status, differentiating between signs of hypovolemia and hypervolemia.

Clinical Relevance

Nursing practice connection: Use the key finding related to Assessment of fluid status in acute kidney injury (AKI) to guide bedside assessment, documentation, and the next nursing action.
Accurate fluid status assessment is a critical nursing responsibility in managing patients with AKI. Misinterpretation can lead to inappropriate fluid administration, worsening kidney function or causing complications like pulmonary edema.
Daily weights are the most sensitive indicator of fluid balance changes. A weight gain of 1 kg corresponds to approximately 1 liter of retained fluid.
Strict monitoring of Intake and Output (I&O) is essential. The nurse must account for all sources of intake (oral, IV) and output (urine, vomit, diarrhea, drain output).

How to Approach the Question

First, identify the key concept in the question: the signs of 'fluid deficit' (hypovolemia/dehydration).
Next, analyze the patient context: 'acute kidney injury' (AKI), a condition where both fluid deficit and overload are possible risks.
Evaluate each option against the definition of fluid deficit.
Option A: Poor skin turgor and dry mucous membranes are hallmark signs of dehydration.
Options B, C, and D: Periorbital edema, lung crackles, and a bounding pulse are all signs of the opposite condition, fluid overload (hypervolemia).
Therefore, select the option that directly matches the signs of fluid deficit.

Concept Tested & Keywords

Concept Tested: Assessment of fluid status in acute kidney injury (AKI)
Stem keywords: fluid status, acute kidney injury, fluid deficit, physical finding
Lead-in keywords: best indicates
Clinical cues: The patient has acute kidney injury, a condition where fluid balance is critically important and can shift rapidly.

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