Please check your internet connection and try again.
# Normal Saline (0.9% Sodium Chloride Injection)
## Overview
Normal saline is an isotonic intravenous fluid used for hydration, electrolyte replenishment, and as a diluent for compatible medications. It provides sodium and chloride ions.
## Primary Indications
* Volume resuscitation in hypovolemia (e.g., dehydration, hemorrhage, burns)
* Maintenance fluid therapy
* Electrolyte replacement (sodium and chloride)
* Diluent for intravenous drug administration
## Adult Dosing
Dosing is highly individualized based on patient condition, fluid status, and electrolyte levels.
* **Resuscitation:** Bolus doses of 250 mL to 1 L (or more) may be administered rapidly. Titrate to clinical endpoints (e.g., blood pressure, urine output). Max dose not strictly defined; guided by clinical response and potential for fluid overload.
* **Maintenance:** Typically 1.5 to 2.5 L over 24 hours, adjusted for losses and insensible fluid requirements.
## Pediatric Dosing
Dosing is highly individualized and depends on age, weight, and clinical condition. Local protocols should be consulted.
* **Resuscitation:** Bolus doses of 10-20 mL/kg, repeated as needed.
* **Maintenance:** Generally 100 mL/kg/day for the first 10 kg, 50 mL/kg/day for the next 10 kg, and 20 mL/kg/day for remaining weight. This is a general guideline and requires significant clinical adjustment.
## Dose Adjustments
No dose adjustment is typically needed for renal or hepatic impairment; however, fluid and electrolyte balance must be carefully monitored in these patients due to the risk of fluid overload and electrolyte disturbances.
## Contraindications
* Severe congestive heart failure
* Pulmonary edema
* Severe renal insufficiency
* Conditions where hypernatremia or fluid overload is detrimental
## Adverse Effects
* **Fluid Overload:** Edema, pulmonary congestion, shortness of breath, hypertension.
* **Electrolyte Imbalances:** Hypernatremia (especially with excessive administration or impaired excretion), hyperchloremia.
* **Vein Irritation:** With rapid infusion.
## Key Drug Interactions
Normal saline is commonly used as a diluent. Compatibility with other medications should be verified. It can alter the pH of solutions, potentially affecting the stability or efficacy of certain drugs.
## Monitoring
* Vital signs (blood pressure, heart rate, respiratory rate)
* Urine output
* Serum electrolytes (sodium, chloride)
* Fluid balance (intake and output)
* Signs of fluid overload (edema, lung sounds)
## Clinical Pearls
* Considered the fluid of choice for initial resuscitation in many trauma and shock states.
* Use with caution in patients with heart failure, renal impairment, or those at risk for hypernatremia.
* Excessive administration can lead to hypertonic saline toxicity-like symptoms if body cannot excrete sodium efficiently.
***
**Disclaimer:** This information is intended for healthcare professionals. Always consult the official prescribing information and institutional protocols for the most current and comprehensive guidance.
