Specimen Collection
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When encountering a patient with fistula, the phlebotomist should?
Use the other arm
Ideal clotting time
20-30 mins
Microsampling refers to blood collection by skin puncture and is frequently used on the following types of patients:
• Infants less than 6 months • Young children • Adult with poor veins • Severely burned patients
Recommended order of drawing blood when an evacuated tube system is used?
Blood culture Coagulation Non additive Gel separator Other additives
What will be the effect on the sample if alcohol used to clean the puncture site was not allowed to completely dry?
Hemolysis
Donning
Gown Mark Goggles Gloves
Blood collection tube are labeled
Immediately after specimen collection
Application of tourniquet is contraindicated when collecting samples for which analysis?
Lactate determination and blood gasses
Where is the ideal puncture site for pediatric patients?
Lateral of medial plantar heel surface
During the actual sample collection process, a sudden swelling occurs around the puncture site. What should be done?
Immediately remove the tourniquet and then the needle and apply first aid
Post analytical phase
Critical value reporting and turn around time
Most important step in phlebotomy
Identifying the patient
This anticoagulant is contraindicated in enzymes studies
Citrate
What is the proper angle of needle insertion for venipuncture?
15-30 degrees
Hemolysis may be prevented by the following EXCEPT?
Removal of needle before transferring collected sample on test tube
Specimen collected in wrong tube is an example of a/an:
Pre-analytical error
Which of the following needle sizes has a bore with the widest diameter?
18 gauge
During sample collection, anchoring the vein properly requires which of the following actions?
Place the thumb of your free hand below the vein on the puncture site
The most common means of collecting blood for blood chemistry is by the following EXCEPT?
Arterial puncture
What is the action of EDTA as an anticoagulant?
Forms weakly dissociated calcium component