Comprehensive Nursing Care Plan for Fluid Volume Deficit

Primary NANDA nursing diagnoses for fluid volume deficit (hypovolemia), in priority order: (1) Deficient Fluid Volume (00027) — related to excessive fluid losses (vomiting, diarrhea, hemorrhage, diaphoresis, burns) or inadequate intake. Expected outcome: urine output ≥0.5 mL/kg/hour; moist mucous membranes; skin turgor returns within 2 seconds; BP within patient baseline; HR <100 bpm. (2) Risk for Electrolyte Imbalance (00195) — particularly sodium, potassium, and chloride with significant fluid loss. Expected outcome: serum sodium 135-145 mEq/L; K+ 3.5-5.0 mEq/L; no signs of hypo/hypernatremia or hypokalemia. (3) Activity Intolerance (00092) — related to decreased cardiac output and reduced oxygen delivery from hypovolemia. Expected outcome: patient ambulates without orthostatic hypotension (BP drop <20 mmHg systolic on standing) within 24 hours of fluid repletion. (4) Risk for Falls (00155) — related to orthostatic hypotension and dizziness. Expected outcome: no falls during hospitalization. Nursing priority sequencing: first secure IV access and begin fluid resuscitation, THEN address electrolyte monitoring, activity, and education. Document hourly intake/output (I&O) from admission.

Decision framework for fluid replacement route: Oral rehydration (ORS) is appropriate when: patient is alert and can swallow, mild-to-moderate dehydration only (skin turgor mildly decreased, mucous membranes dry but no shock signs), no vomiting or vomiting controlled, no bowel obstruction. ORS is 75 mEq/L sodium per WHO formula — this is also appropriate for mild gastroenteritis-related FVD. IV therapy required when: HR >100 bpm + BP <90/60 mmHg (shock criteria), confusion or altered mental status, severe vomiting, severe dehydration (skin turgor markedly decreased, sunken eyes, no urine output), or paediatric FVD with >10% body weight loss. IV fluid selection: Isotonic fluids (0.9% Normal Saline or Lactated Ringer's) are first-line for acute FVD/hypovolemia — expand intravascular volume without shifting into cells. Lactated Ringer's is preferred for haemorrhagic or surgical FVD (more physiologic electrolyte composition, less hyperchloraemia risk). 0.45% NS (hypotonic) is CONTRAINDICATED in acute hypovolemia — causes fluid shift into cells, worsens intravascular deficit. Rate titration: typically 500 mL bolus over 15-30 minutes for acute hypovolemia in adults; then reassess with vital signs + urine output before continuing. Document: IV site, fluid type, rate, patient response, and reassessment time in nursing notes.

Monitoring parameters and target values: (1) Urine output: normal ≥0.5 mL/kg/hour in adults (30 mL/hour for 60kg patient). Below 0.5 mL/kg/hour for >2 consecutive hours despite IV fluids = escalate to medical team immediately (possible AKI or inadequate resuscitation). (2) Serum labs: BUN (Blood Urea Nitrogen) elevated in dehydration (normal 7-20 mg/dL; >25 with normal creatinine = likely prerenal/dehydration). Hematocrit elevated in haemoconcentration (normal 36-50% in women, 40-54% in men; rising trend = ongoing fluid loss). Serum sodium: hypernatraemia (>145 mEq/L) signals hypotonic fluid loss; hyponatraemia (<135 mEq/L) signals hypotonic fluid overload or inappropriate fluid replacement. Serum potassium: hypokalaemia common with vomiting/diarrhoea-related FVD (K+ loss). (3) Vital signs trends: HR trending down + BP trending up = fluid resuscitation working. Persistent tachycardia despite 1-2L IV = reassess for ongoing losses, occult haemorrhage, sepsis, or cardiac causes. (4) Clinical signs: skin turgor improves (pinch test returns <2 seconds), mucous membranes moisten, capillary refill <3 seconds = positive response. (5) Orthostatic vitals: check BP + HR lying → sitting → standing. Drop of ≥20 mmHg systolic or ≥10 mmHg diastolic = orthostatic hypotension → fall risk protocol; assist all ambulation. Escalation triggers: HR >120 bpm unresponsive to initial bolus; BP <80/50 mmHg; urine output zero for >2 hours; confusion worsening; haemoglobin dropping (haemorrhage). Call Rapid Response Team.

Discharge education for patients recovering from fluid volume deficit: (1) Identify personal red flags — teach the patient to return to emergency if: urine becomes dark/infrequent (<3-4 times/day), dizziness on standing, persistent vomiting preventing oral intake, rapid heart rate felt at rest, or confusion. Use teach-back: 'Can you tell me two signs that mean you should call for help?' (2) Daily fluid intake target — most Indian adults need 2-2.5 litres of fluid daily in normal weather; 3+ litres in summer or during physical activity or fever. Explain that thirst is a LATE signal of dehydration — don't wait for thirst; schedule fluid intake. (3) ORS for home use — teach ORS preparation: 1 litre clean water + 6 teaspoons sugar + ½ teaspoon salt. Available readymade (Electral, Pedialyte). ORS is for active vomiting/diarrhoea — not plain water, which dilutes electrolytes. (4) High-risk periods — remind of situations requiring extra fluid intake: summer heat (India), fever (200mL extra per 1°C above 37°C), diarrhoea/vomiting, heavy exercise, post-surgery. (5) Medication review — diuretics (e.g. furosemide), ACE inhibitors, and laxatives all increase dehydration risk. Patient should not self-adjust diuretic dose during illness — call the prescribing doctor. (6) Diet — light easily digestible foods (khichdi, curd-rice, banana) to reduce GI fluid losses. Avoid caffeine and alcohol which increase fluid losses. Document teach-back completion in discharge nursing notes.