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| 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 # |
Protein, Plasma/Serum
Test CodeTP
Alias/See Also
Total Protein, TP, Protein total
Preferred Specimen
1.0 mL plasma (0.5 mL minimum)
Transport Container
PST (light green top). Red top and SST also acceptable
Specimen Stability
Room temperature: 8 hours, Refrigerated: 72 hours, Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed specimens are unacceptable.
Reference Range
| Age | Female | Male |
| Adult (>19 years): | 6.4 – 8.2 g/dL | 6.4 – 8.2 g/dL |
| Pediatric: | ||
| 0 – 60 days | 3.6-7.0 | 4.0-7.6 |
| 61 – 180 days | 4.0-7.6 | 4.0-7.0 |
| 6 – 11 months | 4.6-7.8 | 4.2-7.9 |
| 1 – 6 years | 6.0-7.8 | 6.0-8.0 |
| 7 – 9 years | 6.3-8.1 | 6.3-8.1 |
| 10 – 19 years | 6.4-8.6 | 6.4-8.6 |
Clinical Significance
The total serum protein level is the sum of all circulating proteins that are major components of blood. Serum total protein measurements are useful in the diagnosis and treatment of a variety of diseases involving the liver, kidney, or bone marrow as well as other metabolic or nutritional disorders.
