POTASSIUM BLOOD (K)
: Ion-selective electrode diluted (Indirect)
: 0-<1mo: 3.7-5.9 mmol/L
Comment: Premature 0-48 hour range is 3.0-6.0 mmol/L
1mo-<1yr: 4.1-5.3 mmol/L
1-<12yrs; 3.4-4.7 mmol/L
Note: Pediatric reference ranges verified for serum only (plasma samples are slightly lower).
Adult Plasma Range: 12-150yrs: 3.3-4.8 mmol/L
Comment: serum reference range is higher 3.5-5.1 mmol/L
: Light green PST (Lithium Heparin with gel) tube - 4.5 mL
: 1 light green top microtainer
: 1 mL plasma
: 0.3 mL plasma
: Separate within 1 hour and store/ship @ ambient temperature until delivery.
: 7 Days at 20-25C, 7 Days at 2-8C, 1 year at -20C
Reasons for Rejection
: Hemolysis, icteric specimens, and lipimia; improper collection; QNS
: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab
: Hemolysis elevates value
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