What is the specimen of choice for electrolyte testing?
Heparinized plasma is the specimen of choice; it contains less K, namely, 0.3 to 0.7 mmol per L, than serum due to platelet release during coagulation.
What color tube is used for sodium test?
Container. Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube.
How electrolytes are tested?
Your electrolytes can be checked with either a blood or urine test. The blood test is done with a blood sample. A needle is used to draw blood from a vein in your arm or hand. For a urine test, you provide a urine sample in a specimen container.
What color tube is used for electrolytes?
Red-top tube or green-top (heparin) tube is acceptable if centrifuged within 45 minutes and the serum or plasma is removed and placed in a tightly-stoppered secondary tube.
What color tube is used for potassium?
| POTASSIUM | |
|---|---|
| ORDERING INFORMATION: | Geisinger Epic Procedure Code: LAB2885 Geisinger Epic ID: 14403 |
| Preferred collection container: | Stat/Line draws: 3 mL green/yellow-top (plasma separator) tube Routine requests/off-site specimens: 3.5 mL gold-top (serum separator) tube |
| Specimen required: | 2 mL of serum or plasma; minimum 0.2 mL. |
What color tube is for electrolytes?
What is a green-top tube used for?
Light green-top tube (lithium heparin) This tube contains lithium heparin and gel separator used for the collection of heparinized plasma for routine chemistry tests. NOTE: After the tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen.
What comes in an electrolyte panel?
An electrolyte panel is a blood test. It measures the levels of the body’s main electrolytes that play an important role in many bodily functions, such as heart rhythm, muscle contraction, and brain function. It also includes tests to assess kidney function and hydration status.