SODIUM CHLORIDE 0.9% IN PLASTIC CONTAINER
Clinical safety rating
safeNo significant drug interactions Can cause hypernatremia and fluid overload.
Sodium chloride 0.9% is an isotonic solution that expands extracellular fluid volume, replacing sodium and chloride deficits. Sodium is the primary cation maintaining osmotic pressure and acid-base balance; chloride is the major extracellular anion. The solution provides electrolyte replacement and hydration without altering serum osmolality.
| Metabolism | Sodium and chloride are not metabolized; they are excreted primarily by the kidneys with small amounts lost in sweat and feces. |
| Excretion | Renal: >95% of administered sodium and chloride ions are excreted unchanged in urine; fecal and biliary elimination are negligible (<1%). |
| Half-life | Not applicable; sodium and chloride ions are endogenous substances with no defined terminal elimination half-life. Excretion half-life is dependent on renal function, typically 6-12 hours in individuals with normal kidney function. |
| Protein binding | Negligible (<1%); sodium and chloride ions are not significantly bound to plasma proteins. |
| Volume of Distribution | Approximately 0.5-0.7 L/kg (sodium distributes primarily in extracellular fluid; chloride distributes similarly reflecting extracellular space). |
| Bioavailability | Intravenous: 100% (bioavailability not applicable via other routes; oral administration not used for therapeutic effect, and bioavailability is incomplete due to gastrointestinal regulation). |
| Onset of Action | Intravenous: immediate (within seconds to minutes) for volume expansion and correction of electrolyte imbalances. |
| Duration of Action | Intravenous: duration is dependent on renal clearance and fluid status; typically 1-2 hours for volume effect, but electrolyte correction persists until redistribution and excretion occur. Continuous infusion required for sustained effect. |
| Molecular Weight | 58.44 |
Intravenous, 100-200 mL/hour for maintenance; up to 1000 mL bolus for volume resuscitation in adults.
| Dosage form | INJECTABLE |
| Renal impairment | Use with caution in renal impairment; monitor fluid and electrolyte balance. No specific dose adjustment required; adjust volume as needed based on urine output and fluid status. |
| Liver impairment | No specific dose adjustment required. Monitor for fluid overload in cirrhosis with ascites. |
| Pediatric use | Intravenous, maintenance: 100 mL/kg/day for first 10 kg, then 50 mL/kg/day for next 10 kg, then 20 mL/kg/day for remaining kg. Bolus for hypovolemia: 20 mL/kg. |
| Geriatric use | Use with caution due to increased risk of fluid overload and electrolyte disturbances. Lower initial infusion rates recommended, with careful monitoring of cardiovascular and renal function. |
| 1st trimester | Sodium chloride 0.9% is considered safe during the first trimester when used as a volume expander or for maintenance of electrolyte balance. No known teratogenic effects at therapeutic doses. |
| 2nd trimester | Safe for use during the second trimester for fluid and electrolyte replacement. Standard precautions apply; monitor for fluid overload. |
| 3rd trimester | Safe during the third trimester; however, avoid excessive administration due to risk of maternal fluid overload and potential fetal edema. Use with caution in preeclampsia. |
Clinical note
No significant drug interactions Can cause hypernatremia and fluid overload.
| FDA category | Animal |
| Placental transfer | Sodium and chloride ions freely cross the placenta via passive diffusion and active transport. Equilibrium between maternal and fetal compartments is maintained. No significant fetal accumulation under normal conditions. |
| Breastfeeding | Sodium chloride 0.9% is a component of human milk and is considered compatible with breastfeeding. Administration does not alter milk composition significantly. No special precautions needed. |
| Lactation Rating | Safe |
| Teratogenic Risk | Sodium chloride 0.9% is a physiologic saline solution. No teratogenic effects are expected at standard therapeutic doses. Administration during any trimester is considered safe when clinically indicated, as sodium and chloride are normal body constituents. There are no known fetal risks associated with appropriate use. |
| Fetal Monitoring | Monitor maternal serum electrolytes, fluid balance, and renal function. Assess for signs of fluid overload or electrolyte imbalance. Fetal monitoring is not routinely required but may be indicated based on maternal condition. |
| Fertility Effects | No known adverse effects on fertility. Sodium chloride 0.9% is a physiologic solution and does not impair reproductive function at therapeutic doses. |
■ FDA Black Box Warning
None
| Common Effects | fluid replacement |
| Serious Effects |
HypernatremiaHyperchloremiaFluid overload states (e.g., congestive heart failure, pulmonary edema)Severe renal impairment with oliguria or anuria
| Precautions | May cause fluid overload, especially in patients with heart failure, renal impairment, or hepatic cirrhosis, Risk of hypernatremia with excessive administration, Monitor serum electrolytes, fluid balance, and renal function during prolonged therapy, Use with caution in patients with hypertension, congestive heart failure, or edema |
| Food/Dietary | No specific food interactions. However, patients on a sodium-restricted diet should be informed about the sodium content (154 mEq/L). Monitor total daily sodium intake from all sources. |
| Clinical Pearls | 0.9% sodium chloride is isotonic and is the preferred crystalloid for volume resuscitation in hemorrhagic shock and for administration of packed red blood cells. Avoid in patients with hypernatremia, fluid overload, or significant renal impairment. Use with caution in congestive heart failure and severe edema. It is compatible with most IV drugs but check compatibility before co-administration. |
| Patient Advice | This solution replaces fluids and salt in your body and is given through a vein. · Tell your doctor if you have heart failure, kidney problems, or high blood pressure. · You may experience swelling if you receive too much fluid. · Report any shortness of breath, chest pain, or unusual weight gain. |
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