ch 11 - special collection & point of care blood tests

an undetected error can result in…

can result in administration of an incompatible blood product and the possibility of a fatal transfusion reaction.

what color tube is preferred for blood bank and why

pink EDTA tubes because it stands out

• or lavender

what will happen to the patient if they recieve the wrong blood from being misidentified? and why will that happen?

can be fatal and lead to death

• because of agglutination (clumping) and lysis (rupturing) of the RBCs

what color tube for cross match

pink

during cross-match what is mixed together to determine compatibility

pt’s plasma or serum & donor’s RBCs are mixed together

what is autologous donation

the process by which a person donates blood for their own use.

• Using one’s own blood eliminates many risks associated with transfusions

what is FUO

fever of unknown origin

• a persistent fever with no obvious cause, has long been recognized as an indication of a BSI

word for without air

anaerobic

what is the most critical part of the blood culture collection procedure

Skin antisepsis, (the destruction of microorganisms on the skin)

according to CLSI, what is the recommended blood culture site disinfectant for infants 2 months or older

chlorhexidine gluconate

what test is used for heparin therapy

ACT

PP meaning

postprandial - after meal

what is GTT

used to diagnose carbohydrate metabolism problems.

term for blood glucose level is increased (FIB)

hyperglycemia

when does GTT timing begin

after the patient finish the drink

what does paternity testing require

chain of custody protocol

what type of samples are required for parental testing

buccal swabs

term for a disease involving the body’s overproduction of RBCs

polycythemia

term for iron overload

Hemochromatosis

what are two tests to diagnose iron overload

• transferrin saturation, also called total iron-binding capacity (TIBC),

• and serum ferritin.

when do we use chain of custody

when forensic specimens are collected for drug and DNA analysis, chain of custody must be followed

• tracks the specimen from the time it is collected until results are reported

what is the most frequently used antiseptics for ETOH specimen collection

aqueous benzalkonium chloride (BZK)

additive used for EOH?

sodium fluoride (gray tube)

best way to draw royal blue trace element

by itself

what tube is used for lead analysis (FIB)

tan top tube

what happens with TB gold test

they fill slowly so keep each tube in place for several seconds after it stops filling to make certain it has filled completely.

Everyone who performs POCT in a clinical setting must meet what requirements

meet the requirements of the

• Clinical Laboratory Improvement Amendments (CLIA) for testing

• OSHA guidelines for specimen handling.

what is ACT test and its function

activated clotting time (ACT)

• analyzes activity of the intrinsic coagulation factors

• is used to monitor heparin therapy.

All analyzers approved for hospital use have which characteristics in common?

• Sample types used may be venous, arterial, or capillary.

• They allow data to be downloaded from the device and transmitted to the LIS or electronic health record (EHR).

• They require the use of a patient and/or authorized operator identification number.

• They require QC.

when to fill an aerobic or anerobic blood culture first?

Aerobic blood culture bottles