Tubes

Tubes

Different patient groups and collection techniques require different collection systems. With a nominal volume range from 100–600 µl, the capillary blood collection systems product range is one of the most extensive in the entire market. Depending on the requirements, our portfolio includes Microvettes with conical or round bottom inner tubes and the option for various different collection techniques, end-to-end or with a collection rim.

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General

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    When should the Minivette® POCT be used?

    The Minivette® POCT is particularly suitable for the precise recovery and dispensing of defined small whole blood samples. This is especially required for Point-of-Care tests (POCT).

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    Why does the Multivette® have two marks, and which one is the filling level mark?

    Both marks refer to the filling level. As the Multivette® is held horizontally and tilted slightly while collecting blood, the mark at the bottom of the Multivette® shows the correct filling level. After collection, the capillary tube is emptied through extraction. The filling level of an upright Multivette® can be read by the upper mark.

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    Is the Multivette® suitable for venous or capillary blood collection?

    Both collection methods are possible with the Multivette®. The capillary tube has been developed so that either capillary blood can be collected directly with the self-filling capillary tube or venous blood can be collected by attaching a safety Luer needle to the capillary tube.

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    Why is there no Microvette® with a citrate preparation for coagulation?

    Capillary blood is not suitable for coagulation diagnostics. When collecting capillary blood, a certain amount of tissue fluid is also taken. This can result in false measurement values in coagulation analysis.

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    Can the Microvette® be completely processed in automated analysers?

    There are special carrier tubes available (e.g. product no 55.1570; 55.1572;55.1571) which enable adaptation for analysis systems and centrifuges.There are special carrier tubes available (e.g. product no 55.1570; 55.1572;55.1571) which enable adaptation for analysis systems and centrifuges.

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    Which drawing techniques can be used to collect capillary blood with the Microvette®?

    When using the Microvette®, the user has a choice of two collection techniques. The blood can either be taken using the pre-assembled end-to-end capillary or with the special rim. 

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    Does it have an expiry date and, if yes, where can it be found?

    Yes, each Microvette® is labelled with an expiry date and lot number.

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    Which centrifugation conditions must be taken into account for the Microvette® and Multivette® with serum preparation?

    For serum, the optimal conditions are 5 minutes, 10,000 x g at 20°C. The recommended centrifugation conditions are printed on the labels of each inner box and are found on the Sarstedt website under Product Specifications.

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    What centrifugation conditions must be taken into account for the Microvette® and Multivette® with serum gel and lithium heparin gel preparations?

    For serum gel and lithium heparin gel, the optimal conditions are 5 minutes, 10,000 x g at 20°C. The recommended centrifugation conditions are printed on the labels of each inner box and can be found on the Sarstedt website under Product Specifications.

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    What centrifugation conditions must be taken into account for the Microvette® and Multivette® with lithium heparin, fluoride and EDTA?

    For lithium heparin, EDTA and fluoride, the optimal conditions are 5 minutes, 2000 x g at 20°C. The recommended centrifugation conditions are printed on the labels of each inner box and can be found on the Sarstedt website under Product Specifications.

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    Can the Microvette® also be used for venous blood collection?

    The Microvette® has the ideal features for capillary blood collection, but it can also be used for venous blood collection. Alternatively, the prepared micro sample tubes with attached lid or screw cap can be used. These are ideal for venous blood collection.

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    Which capillary system can be used to determine ESR?

    The Microvette® CB 200 ESR (product no 18.1325) is ideal for measuring blood sedimentation from capillary blood.

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    Why are there Microvettes with conical and cylindrical inner tubes?

    Microvettes with conical inner tubes provide optimum pipetting of serum and plasma supernatants, even with small amounts of blood. The cylindrical inner tube makes it easier to mix the sample and enables optimal gel separation after centrifugation.

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    In what order should capillary blood draws be taken?

    The CLSI standard (Clinical and Laboratory Standards Institute) recommends EDTA, heparin, heparin gel, fluoride, serum and then serum gel.

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Multivette® 600

Multivette® 600

Multivette® 600

(DE)  
Centrifugation conditions Microvette® & Multivette® & Micro Tubes

Centrifugation conditions Microvette® & Multivette® & Micro Tubes

Centrifugation conditions Microvette® & Multivette® & Micro Tubes

(DE & EN)   (DE & EN-US)