Second Week Test- Flashcards
Which Vacutainer tubes is routinely used for hematology testing?
Lavender- EDTA
What tube has no anticoagulants found in it?
Red
Which type of tube should be used to collect blood specimens during a glucose tolerance test?
Gray
What anticoagulant prevents platelets from clumping and preserves the appearance of blood cells for microscopic preparation?
EDTA
The slant at the open end of a needle used for venipuncture is called the-
Bevel
Most commonly size needle for adult venipuncture is
20-21 gauge
20- on the test
Most commonly size needle used by a blood bank for donation is
16 gauge
Most commonly size needle used for infant/elderly is
23 gauge
Plasma is present in which venipuncture tube?
PST Green/Gray tube
What is a tourniquet used for?
- prevent venous flow out of the site.
- make the veins more prominent
How long should a tourniquet be tied on the arm for?
1 Minute
What part of the venipuncture needle that fits into the syringe or Vacutainer is adapter is?
Hub
When should a syringe be used instead of a Vacutainer?
When a person has fragile veins
What is Hemoconcentration?
Leaving a tourniquet tied on a pt’s arm for longer than the recommended time.
Used before a routine venipuncture or capillary puncture, used to clean the site.
Antiseptic (Isopropyl alcohol)
What degree angle should the needle enter the arm during venipuncture?
15 degree
Another name for a winged infusion is
Butterfly needle assembly
A needle stick is more likely to occur if a phlebotomist attempts to
Recap a needle
What can cause a hemotma?
Blind probing, failure to insert a needle far away into the vein, penetration through the vein
4 ways a capillary puncture can be collected
- Microtainer tube
- Capillary tube
- Microhematocrit / into small paper
- Filter paper
A blank is a device used for dermal puncture.
Lancet
The most common phlebotomy site for an adult is veins in the
Antecubital space.
The proper tube for collecting a serum specimen is which two color topped tubes?
Light blue & Red
___ is the liquid portion of whole blood that contains clotting factors.
Plasma
___ is the liquid portion of the blood that does not contain clotting factors.
Serum
What direction should the bevel of the needle be facing?
Up
What color is the tube top is used for a coagulation test?
Light Blue
Name 4 things that can be used at the venipuncture site to eliminate contaminating bacteria?
- 70% Rubbing alcohol
- Sterile soap pads
- Benzalkonium Chloride (Betadine),
- Povidone Iodine
What test is used on all infants within 48 hours of birth to test for certain metabolic disorders?
Simple blood test
Which tubes contain thixotropic gel?
Green/Gray, Light Green
What is the first step OSHA recommends for effective management of an accidental needle stick?
Wash site for 10 minutes with antimicrobial soap
10% iodine solution
or
Chlorine based antiseptic
What is the major cause of specimen rejection?
Gughie card
Which finger is typically used for a routine capillary puncture?
Ring Finger
What type of consent must be given before preforming venipuncture?
Verbal Consent
