Newborn and Premature electrolyte parameters

Comments

• deanne.wilk@hcpro.com

  July 2024

  Hi annnd2009,

  Below is some information I have but you would want to verify with the facility since, as you know, the equipment can vary.

  Sodium (Na+)

  • Normal range for term infants: 135-145 mEq/L
  • Normal range for premature infants: 135-145 mEq/L
  • Abnormal: < 130 mEq/L (hyponatremia) or > 150 mEq/L (hypernatremia)

  Potassium (K+)

  • Normal range for term infants: 3.5-5.5 mEq/L
  • Normal range for premature infants: 4.0-6.5 mEq/L (can be higher in the first days of life)
  • Abnormal: < 3.0 mEq/L (hypokalemia) or > 6.5 mEq/L (hyperkalemia)

  Chloride (Cl-)

  • Normal range for term infants: 98-108 mEq/L
  • Normal range for premature infants: 95-110 mEq/L
  • Abnormal: < 90 mEq/L (hypochloremia) or > 115 mEq/L (hyperchloremia)

  Calcium (Ca2+)

  • Normal range for term infants: 8.5-10.5 mg/dL
  • Normal range for premature infants: 7.5-10.5 mg/dL
  • Abnormal: < 7 mg/dL (hypocalcemia) or > 11 mg/dL (hypercalcemia)

  Phosphorus (P)

  • Normal range for term infants: 4.5-7.5 mg/dL
  • Normal range for premature infants: 5.0-8.0 mg/dL
  • Abnormal: < 4.0 mg/dL (hypophosphatemia) or > 9.0 mg/dL (hyperphosphatemia)

  Magnesium (Mg2+)

  • Normal range for term infants: 1.5-2.5 mg/dL
  • Normal range for premature infants: 1.5-2.5 mg/dL
  • Abnormal: < 1.0 mg/dL (hypomagnesemia) or > 3.0 mg/dL (hypermagnesemia)

  
  
• sarah.leaphart@prismahealth.org

  March 7

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  deanne.wilk@hcpro.comJul 22, 2024

  Hi annnd2009,

  Below is some information I have but you would want to verify with the facility since, as you know, the equipment can vary.

  Sodium (Na+)

  • Normal range for term infants: 135-145 mEq/L
  • Normal range for premature infants: 135-145 mEq/L
  • Abnormal: < 130 mEq/L (hyponatremia) or > 150 mEq/L (hypernatremia)

  Potassium (K+)

  • Normal range for term infants: 3.5-5.5 mEq/L
  • Normal range for premature infants: 4.0-6.5 mEq/L (can be higher in the first days of life)
  • Abnormal: < 3.0 mEq/L (hypokalemia) or > 6.5 mEq/L (hyperkalemia)

  Chloride (Cl-)

  • Normal range for term infants: 98-108 mEq/L
  • Normal range for premature infants: 95-110 mEq/L
  • Abnormal: < 90 mEq/L (hypochloremia) or > 115 mEq/L (hyperchloremia)

  Calcium (Ca2+)

  • Normal range for term infants: 8.5-10.5 mg/dL
  • Normal range for premature infants: 7.5-10.5 mg/dL
  • Abnormal: < 7 mg/dL (hypocalcemia) or > 11 mg/dL (hypercalcemia)

  Phosphorus (P)

  • Normal range for term infants: 4.5-7.5 mg/dL
  • Normal range for premature infants: 5.0-8.0 mg/dL
  • Abnormal: < 4.0 mg/dL (hypophosphatemia) or > 9.0 mg/dL (hyperphosphatemia)

  Magnesium (Mg2+)

  • Normal range for term infants: 1.5-2.5 mg/dL
  • Normal range for premature infants: 1.5-2.5 mg/dL
  • Abnormal: < 1.0 mg/dL (hypomagnesemia) or > 3.0 mg/dL (hypermagnesemia)

  Thank you for posting this. I'm working on a tip sheet for our NICU team and need these parameters. Are these ranges from your facility or did you pull these from another resource?