12/02/2024
INTRAVENOUS FLUID THERAPY : Perioperative and Critical Care Setting
IV stages to check for IVF Therapy Appropriateness
I. ASSESSMENT
- Fluid balance daily
- Patientโs weight q3 days
- Fluid and electrolyte along with BUN
- If possible Na balance should be reported
II. INDICATION
A. [ Resuscitation Phase (R) or Salvage Phase (S) ]
> 3-4cc/kg/day of balanced cystralloids
> Fluid responsiveness assessment (Passive Leg Raise or End-expiratory occlusion test, MAP and cardiac output continuous monitoring via pulses contour monitor analysis allowing assessment of beat-to-beat combination)
> Patient should be reassessed after 30minutes every resuscitation
> Care should be upgraded if more than 2L of crystalloids given and still need resuscitation
> f still not given >2L of crystalloids, give 2-4cc/kg and reassess.
> GOAL: Fluid Balance must be POSITIVE
B. [ Optimization Phase (O) ]
> Starts the no overt absolute/relative hypovolemia but still unstable
> Goal: optimize and prevention of hypoperfusion (Markers: Lactate, Prolonged CRT, and Mottling Score
> Maintenance
- 25-30cc/kg/day (1cc/kg/h) of water +
- 1mmol/kg/day K + 1-1.5mmol/kg/day Na + 1mmol/kg/day Cl + 50-100g/kg/day glucose to limit starvation ketosis
- The amount of fluid intake via other sources should be subtracted from the basic maintenance need of 1cc/kg/hr (Enteral / Fluid creep)
C. [ Stabilization Phase (S)]
> To ensure water and electrolytes to replace ongoing losses and provide organ support
> Goal: ZERO or slightly negative fluid balance
> Late conservative fluid management = 2 consecutive days of negative fluid balance within the first week of ICU stay, and is an independent predictor of survival in ICU patients
> Fluid creep
- All sources should be detailed and precise
- The sum of volumes of these electrolytes + small volumes to keep venous lines open + volume for medication vehicle (1cc/kg/hr)
D. [ Evacuation Phase (E) or De-escalation Phase (D) ]
> purpose of removing excessive fluid; spontaneous diuresis
> 5 steps of Deresuscitation/DeEscalation need to be kept in mind:
1. define a clinical end- point (e.g., improvement in oxygenation);
2. set a fluid balance goal (e.g., 1 L negative balance in 24 h);
3. set perfusion and renal safety precautions (e.g., vasopressor need, 25% serum creatinine increase);
4. re-evaluate after 24 h unless safety limits reached;
5. adjust the plan accordingly.
> Management:
1. Administration of albumin in combination with diuretics (20% albumin to achieve a serum albumin levels of 30 g/L and furosemide bolus of 60 mg followed by continuous infusion of 10 mg/h)
2. PEEP application to counteract intraabdominal pressure
3. CRRT adnd aggressive ultrafiltration โ to achieve negative balance
III. PRESCRIPTION
- Type, Rate, Dose, Current electrolytes disorder
IV. MANAGEMENT
- IVF Management Plan for 24hours