LumiraDx Instrument, User Manual

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3.3 Sample collection
When collecting any type of sample, follow universal blood collection precautions and
guidelines according to your organization. The steps that follow apply to collecting a
capillary blood sample from a finger stick.
Refer to Test Strip Product Insert for information on sample types and collection.
Optionally, a validated transfer tube may be used to collect the sample. Details of
LumiraDx recommended transfer tubes are available at www.lumiradx.com.
Collecting a capillary blood sample from a finger stick
Increasing the blood flow in the finger will help to get a good drop of blood. Before
lancing the finger, the following techniques can be used until the fingertip has
increased colour:
• Ask the patient to rinse their hands with warm water.
• Ask the patient to hold his or her arm straight down at their side.
• Massage the finger from its base, and if required, immediately after lancing, very
gently squeeze the finger from its base to encourage blood flow.
• Avoid excessive squeezing.
Choose which part of the patient’s finger is most appropriate for sample extraction:
• Index finger or a middle finger on either hand.
• Away from any calluses or scars.
• Near the fingertip on the side that faces down when you put your hand out (i.e.
as if to shake hands with someone), so it is easy to bring the blood drop to the Test
Strip Sample Application Area.
Use a lancet on the selected finger to obtain a blood sample.
26 - Preparation for Testing
Lancing sites for finger stick