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3.8 Sample Tubes for the Element DC5X Analyzer
The following sample tubes can be used on the Element DC5X Analyzer.
• DRI-CHEM Sample Tube; 1.5 mL
• DRI-CHEM Sample Tube; 0.5 mL
3.8.1 Blood collection tubes
1. Tube contents and inspection items that can be measured.
The tube contents within a blood collection tube determine which slides are applicable. The following is general
information about tube contents and the applicable tests.
Heparin blood collection tubes
• Applicable to all tests. For GLU and NH
3
, measure the samples as soon as possible after blood collection.
• General color of cap: Green
Plain (no additives or coagulant)
• Applicable to all tests other than NH
3
• For plasma or serum samples only.
• General color of cap: Red
1.5
1.0
0.5
0.5
0.3
0.1
3.8.2 Producing samples using sample tubes
1. Obtaining plasma samples.
a. Untreated whole blood can be collected and placed directly
into heparin tubes (green cap). Whole blood samples already
containing lithium heparin from another collection tube can
be transferred into non-heparinzed tubes (red cap).
NOTE: The top surface of the sample fluid must be within the shaded
section of the tubes as shown in the figure to the right. If the blood in
the tube is below the suction limit mark, the analyzer will indicate an
insufficient sample volume error.
NOTE: For aspirating only the supernatant fluid (plasma) of the
centrifuged sample (to avoid aspiration of red blood cells), at least
1.0 ml (for 1.5 ml tube) or 0.3 ml (for 0.5 ml tube) of the whole blood
sample should be put in each tube.
b. Put caps on the tubes and mix the contents by rotating them
five or six times.
c. Centrifuge the samples using a commercially available
centrifuge.
2. Obtaining serum samples.
a. Collect whole blood samples not processed with anticoagulant
into standard glass clinical plain tubes. Allow sample to clot
at room temperature for at least 20 minutes (40 minutes for
horses).
b. Centrifuge the sample using a commercially available
centrifuge.
c. Transfer the separated serum into a 0.5 ml non-heparinized
tube (red cap) and place in the instrument for analysis.
NOTE: The top surface of the sample fluid must be within the shaded
section of the tubes as shown in the top-right figure. If the serum in
the tube is below the suction limit mark, the analyzer will indicate an
insufficient sample volume error.
limit of
検体上限
1.5
0.5
0.3
0.1
1.0
0.5
Upper
sample
Lower limit
separation
of sample for
Suction limit
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