Collecting Pathological Samples
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Blood samples
Test Required | Sample Required | Comments |
---|---|---|
Haematology | EDTA | Mix gently immediately after collection |
Biochemistry | Serum | Centrifuge after permitting sufficient clotting time (min 2 hours) |
Fibrinogen | Citrate | Mix gently immediately after collection |
SAA | Serum | Needs to be processed quickly as the half life is very short |
Electrolytes | Heparin | Mix gently immediately after collection |
Glucose | Fluoride oxalate | Can use fresh whole blood if tested immediately |
Prothrombin clotting time | Citrate | A normal sample is required for comparison |
IgG | Serum | Measurement techniques vary so check sample requirements |
Progesterone | Serum | |
Oestrone Sulphate | Serum | |
ACTH | EDTA plasma | Freeze plasme as soon after collection as poss (max 2 hours) |
Selenium | ||
Zinc | Serum | Avoid using tubes with a rubber bung |
Drugs testing | Serum or Heparin | Send to HFL |
EHV | Serum | Take 2 samples 14 days apart (freeze 1st) |
Testosterone | Serum | Request Testosterone before Inhibin for GCTs |
Tapeworm ELISA | Serum | |
Insulin | Serum | Fasting sample required |