This assay is performed on the Roche analyzer platform beginnning 1/3/2023.

This assay is used as an aid in the diagnosis of individuals suspected of having congestive heart failure. The test is further indicated for the risk stratification of patients with acute coronary syndrome and congestive heart failure. The test may also serve as an aid in the assessment of increased risk of cardiovascular events and mortality in patients at risk for heart failure who have stable coronary artery disease.

Lt green plasma separator (PST)

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 

Spin

Lt green plasma separator (PST)

Gold serum separator (SST) tube

Lavender (EDTA), 4mL

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times

Gold

1. Allow sample adequate time to clot to prevent fibrin clots which may cause erroneous results
2. Spin

Lavender

1. Spin
2. Plasma should be separated from blood cells as soon as possible
3. Aliquot into False bottom plasma/serum transport vial/tube (AHL)

    

Gold serum separator (SST) tube

or

Refrigerated (preferred) – 6 days

Ambient - 3 days

Frozen – 24 months

• Improper labels (unlabeled or mislabeled)
• Hemolysis (some procedures)
• Improper anticoagulant or ratio
• Delay in transport
• Improper storage temperature affecting results
• Improper container
• Leaking container resulting in compromised specimen
• Quantity not sufficient (QNS)

Electrochemiluminescence immunoassay (ECLIA)

<75 yrs: <125 pg/mL

>76 yrs: <450 pg/mL