Chapter 8

When is blood not collected in a tube

Point of care test with a test strip

Which tube is the largest

Venipuncture from adult

Error before blood specimen is tested

Preanalytical error

When should PBT contact provider who ordered the test

When they cannot read the writing on requisition

Its 8am draw, basal state is not achieved if the pt

Attended a fitness class before the draw

A needle with a larger gauge number is

Thinner than one with a smaller number

Angled tip of phlebotomy needle is called

Bevel

What part of evacuated tube system is put in sharps bin

Needle and holder

Main risk of using an evacuated tube system on a pt with fragile veins

Pressure will cause vein to collapse

Antiseptic commonly used during venipuncture

70% isopropyl alcohol

Lancets used for premature infant heel sticks have want depth

0.85 mm

Benefit of warming venipuncture site

Increased blood flow

Hematology tube color

Lavender stoppers

Order of draw

Blood culture, light blue, grey

Order of draw for dermal is “blank” than venous

different

A timed draw should be completed

within 5 mins of designated time

Amber colored tubes ensure that sensitive analytes are not exposed to too much

light

Blood tested for bacteria is

blood culture

Drawing tubes in wrong order can cause “blank” errors

preanalytical

Venipuncture on elderly pt undergoing chemotherapy, use what needle and gauge

Butterfly with syringe, 23 gauge

Collection tube for capillary puncture usually have volume of

0.125-0.6 mL

Substances studied in blood tests are called

Analytes

Present in a collection tube but in most cases does not change quality of blood

separator gel

Glycolysis is prevented by

Sodium fluoride

Red topped tube used for

Serology

Pt needs blood culture and coagulation study tests, whats order of draw

Yellow SPS, light blue

Including blood gas test, where does EDTA tubes land for dermal draw order

second

Peak medication needs to be checked after IV, when should it be checked

30 mins

A pt gets seen at 8:30am and last time she ate was 5pm, will length of fast affect some analytes?

Yes

Rough handling of tubes can cause

cell damage