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Test materials

A basic condition for the informative value of laboratory medical analyses is that the state of the measured variables present in the examined body fluid in vivo is transferred unchanged into the analytical process. This is ensured by the use of suitable sampling and shipping materials.

Our test list contains precise instructions as to which material is to be sent in which quantity and which shipping tubes are to be used.

For special tests, we can also send you the appropriate tubes on request and give you detailed descriptions of the sampling procedure.

If, according to the test list, samples are to be sent in frozen for certain tests, please note the information on the relevant pages in the list of services.

 

Whole blood

Whole blood is not usually suitable for mailing. The results of many analyses can be drastically altered by haemolysis. Even though you have previously mailed whole blood samples, follow the sampling directions given in the Test List and use the stabilisers indicated; only then can the sample stability be assured.

If the Test List indicates a whole blood sample is required then use the stabilising reagent in the quantity indicated. Draw blood using the anticoagulant indicated. Transfer to Bioscientia mailing tube.

Urine

Check in the Test List if a single sample or 24h sample collection is required.
Give the patient a clean sampling container for a 24h collection.

Instruct the patient as follows:

  • Keep the urine cool during 24 hour collection, i.e. store in the refrigerator, do not keep at room temperature.
  • Drink normally, but not excessively. No alcohol.
  • Empty bladder in the morning on waking and discard this urine (except for bacteriology).
  • Note time.

Collection Instructions:

  • Collect all urine from that time. Keep urine cool and protected from light.
  • The last urine collection takes place on the next morning at the same time.
  • Measure volume of 24h sample and note on the request form.If the Test List indicates a particular sample pH is required: take    approx. 100 ml of the collected urine and adjust to appropriate pH using indicator paper and the required acid (conc. or 1 N hydrochloric acid). Mix well.
  • Transfer required amount (30 ml) to a Bioscientia urine tube.
  • Ship specimens as soon as possible.

Faeces

Weigh empty collection container or insert a plastic bag.

Avoid mixture of urine or blood during collection.

Most analyses require a 24h collection.

Weigh full collection container.

Note the net weight of sample on the request form.

Mix well and send approx. a 10 g portion in a 30 ml container.

Faeces, urine

The best results from a 24h collection can only be obtained if the patient receives clear and concise instructions.

Many of the analyses require only an aliquot (portion) (e.g. 30 ml urine, 10 g faeces) of the total 24h collection.

Do not forget to record the appropriate 24h volume or weight on the request form. Observe the sampling and shipping instructions given in the Test List.