Abbott i-STAT Alinity Operation Manual page 113

7. Immediately close the cartridge and insert it into an instrument – it is important to prevent exposing
the solution to room air since this will alter the results.
Transferring the control solution: syringe with blunt tip needle
Plain syringes (1cc or 3cc sterile syringes with blunt tip needles) are recommended to transfer aqueous
control solutions from the ampule to the cartridge.
To use a syringe:
1. Place the end of the blunt tip needle into the bottom of the ampule.
2. Slowly remove approximately 1cc of solution from the ampule into the syringe.
• If air is trapped between the leading edge of the solution and the plunger, do not invert the
syringe to expel it; this will not affect solution near the tip of the syringe.
• If air bubbles are continually drawn into the syringe, or if a bubble is trapped near the tip of the
syringe, discard the ampule and syringe.
3. Remove syringe from the ampule and expel one or two drops from the syringe.
4. Place needle into the sample cartridge and fill the cartridge to the fill mark.
5. Close cartridge and begin testing immediately.
Transferring the control solution: capillary tube
Plain capillary tubes are recommended to transfer aqueous control solution from the ampule to the
cartridge. Capillary tubes with sufficient fill capacity are required. For example, when filling a cartridge
that requires 95 µl, use a 150 µl capillary tube.
To use a capillary tube:
1. Place a clean, dry finger over one end of the tube and insert open end of the tube into the bottom of
the ampule.
2. When the open end of the tube touches the bottom of the ampule, tip the ampule slightly. Remove
finger from the other end to allow filling by capillary action. Completely fill the tube with the control
solution.
3. Place a finger over the open end of the tube. Remove the tube from the ampule.
4. Place open end of the tube into the sample cartridge. Remove finger to allow the control solution to
fill the cartridge to the fill mark.
5. Close cartridge immediately after filling.
6. Testing should be started immediately.
Reactive ingredients for i-STAT Control materials:
Analyte
Na (mmol/L)
K (mmol/L)
Cl (mmol/L)
Glu (mmol/L)
Urea (mmol/L)
iCa (mmol/L)
i-STAT Alinity — System Operations Manual
Control Level 1
127
3.1
85
2.5
18
1.6
Art: 745533-01 Rev. H
Control Level 2
141
4.0
100
7.3
4
1.3
75
Control Level 3
169
6.8
122
17
2.7
0.8
Rev. Date: 02-Nov-2022