SODIUM CHLORIDE IN PLASTIC CONTAINER
Clinical safety rating
safeNo significant drug interactions Can cause hypernatremia and fluid overload.
Sodium chloride is the principal extracellular cation and anion, respectively, in the body. It maintains osmotic pressure, fluid balance, and acid-base balance. It is essential for nerve conduction and muscle contraction.
| Metabolism | Sodium chloride is not metabolized; it is eliminated primarily by the kidneys. |
| Excretion | Renal: >95% unchanged via glomerular filtration and tubular reabsorption. Fecal/biliary: negligible. |
| Half-life | Terminal half-life is approximately 24-48 hours in healthy individuals, primarily reflecting renal sodium handling and total body sodium pool; significantly prolonged in renal impairment. |
| Protein binding | None (0%). Sodium is a free ion and does not bind to plasma proteins. |
| Volume of Distribution | Approximately 0.6-0.7 L/kg, representing total body water distribution; clinical meaning: reflects extracellular fluid volume expansion. |
| Bioavailability | Oral: 100% (complete absorption); IV: 100%. |
| Onset of Action | IV: immediate (seconds to minutes) for hemodynamic effects; oral: within 30-60 minutes for gastrointestinal absorption. |
| Duration of Action | IV: minutes to hours depending on volume status and renal function; oral: several hours; effects persist as long as sodium balance is maintained. |
| Molecular Weight | 58.44 |
Intravenous infusion; dose and rate depend on patient's fluid and electrolyte status; typical maintenance: 0.9% NaCl at 1-2 mL/kg/h.
| Dosage form | SOLUTION |
| Renal impairment | No specific dose adjustment; monitor serum sodium and fluid balance in impaired renal function (eGFR <30 mL/min/1.73 m²). |
| Liver impairment | No adjustment required; use cautiously in cirrhosis with ascites. |
| Pediatric use | Intravenous infusion; maintenance: 0.9% NaCl at 100 mL/kg for first 10 kg, 50 mL/kg for next 10 kg, 20 mL/kg for each kg over 20 kg per 24 h. |
| Geriatric use | Use with caution due to increased risk of fluid overload; lower initial infusion rates recommended. |
| 1st trimester | Sodium chloride is a physiological electrolyte and is generally considered safe in pregnancy when used appropriately. It is essential for fluid and electrolyte balance. No teratogenic effects have been reported. |
| 2nd trimester | Continued safety; use as needed for fluid and electrolyte maintenance. No known fetal risks. |
| 3rd trimester | Safe for use, including during labor and delivery. Monitor for potential fluid overload in conditions like 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 and are actively regulated. Fetal serum levels are maintained by maternal-fetal exchange; no evidence of accumulation. |
| Breastfeeding | Sodium chloride is a normal constituent of breast milk. Administration of sodium chloride solutions does not pose a risk to the nursing infant. It is used intravenously to maintain hydration and electrolyte balance in the mother. |
| Lactation Rating | Safe |
| Teratogenic Risk | Sodium chloride administered intravenously at physiologic concentrations does not cross the placenta in significant amounts to cause fetal harm. No teratogenic effects are reported in any trimester. Hypertonic solutions may cause maternal electrolyte disturbances with potential secondary fetal effects if used inappropriately. |
| Fetal Monitoring | Monitor maternal serum electrolytes and fluid status, especially in preeclampsia, cardiac or renal disease. Fetal heart rate monitoring indicated if maternal hypernatremia or volume overload occurs. |
| Fertility Effects | No known adverse effects on fertility at therapeutic doses. High doses causing hypernatremia or volume overload may disrupt reproductive hormone regulation transiently. |
■ FDA Black Box Warning
None.
| Common Effects | fluid replacement |
| Serious Effects |
HypernatremiaFluid overload states (e.g., congestive heart failure, renal failure with oliguria or anuria)Hypersensitivity to sodium chloride or any component
| Precautions | Use with caution in patients with heart failure, renal impairment, edema, or hypertension., Monitor serum electrolytes, fluid balance, and renal function during prolonged therapy., Administration of large volumes may cause fluid overload, hypernatremia, or hypochloremia., Avoid in patients with hypervolemic states or conditions causing sodium retention. |
| Food/Dietary | No specific food interactions. However, patients should avoid excessive dietary sodium intake while receiving this medication to prevent hypernatremia. Monitor for changes in taste or nausea. |
| Clinical Pearls | Monitor serum sodium and chloride levels closely in patients with heart failure, renal impairment, or liver cirrhosis to avoid hypernatremia or fluid overload. Use 0.9% sodium chloride (normal saline) as a first-line crystalloid for resuscitation; avoid 0.45% saline in patients at risk for increased intracranial pressure. The addition of dextrose may be indicated for hypoglycemia or to avoid hemolysis in hypotonic solutions. |
| Patient Advice | This solution contains salt; tell your doctor if you are on a low-sodium diet. · Report any swelling, shortness of breath, or rapid weight gain during infusion. · Do not consume additional salt tablets or high-sodium foods without medical advice. · Seek immediate help if you experience confusion, muscle twitching, or severe headache. |
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