| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Potassium, Plasma, Serum, or Urine
Test CodeK
CPT Codes
84132
Preferred Specimen
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube. Spin specimen
down and send 1 mL of plasma. Avoid hemolysis.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube. Spin specimen down and send
1 mL of serum. Avoid hemolysis.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Urine
1 mL from a 24-hour or random urine collection. No
preservative. Follow instructions in Urine
Collections in Special Instructions.
Note: 1. Starting
and ending times of collection are required.
2. Indicate urine.
3. Label specimen appropriately (urine).
Plasma
Draw blood in a green-top (lithium heparin) tube. Spin specimen
down and send 1 mL of plasma. Avoid hemolysis.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube. Spin specimen down and send
1 mL of serum. Avoid hemolysis.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Urine
1 mL from a 24-hour or random urine collection. No
preservative. Follow instructions in Urine
Collections in Special Instructions.
Note: 1. Starting
and ending times of collection are required.
2. Indicate urine.
3. Label specimen appropriately (urine).
Instructions
Transport Temperature
Refrigerate
Methodology
Ion-Selective Electrode (ISE)
Setup Schedule
Monday through Sunday
Reference Range
PLASMA OR SERUM Reference Range
All ages: 3.6-5.0 mEq/L
Critical values:
Ages 0 - 11:
≤3.0 mEq/L or ≥6.5 mEq/L
Ages ≥ 12: ≤3.0 mEq/L
or ≥5.8 mEq/L
URINE
25-125 mEq/24 hours
Performed By
North Mississippi Medical Center Pathology Department
Performing Laboratory
NMMC Pathology Department
