Blood Bank Exam 2 #9

Compatibility testing includes all steps involved in identification and testing of both the ______ unit and the proposed recipient.

donor

Crossmatching is a ______ of compatibility testing.

part

Some form of crossmatching is required for any RBC transfusion except during ______ release.

emergency

Crossmatching consists of mixing donor RBCs from a unit segment with the recipient's ______ or ______.

plasma; serum

One purpose of crossmatching is to provide a double check of ______ errors.

ABO

Crossmatching helps detect antibodies in addition to the antibody ______.

screen

Electronic crossmatching may be used only when the recipient has no evidence of current or historical ______.

antibodies

Electronic crossmatching uses computer logic to verify ______ compatibility.

ABO

Electronic crossmatching requires multiple verification screens to prevent ______ errors.

keystroke

______ may be used as an additional safety measure during electronic crossmatching.

Bar codes

Immediate spin crossmatching may be used when there is no evidence of current or historical ______.

antibodies

In an immediate spin crossmatch, donor RBCs and recipient plasma are immediately ______.

centrifuged

No agglutination or hemolysis during an immediate spin crossmatch indicates ______.

compatibility

Agglutination or hemolysis during an immediate spin crossmatch indicates ______.

incompatibility

AHG crossmatching is required when the recipient demonstrates clinically significant ______.

antibodies

In an AHG crossmatch, donor RBCs and recipient plasma are carried through all phases of the antiglobulin ______.

test

AHG crossmatching may be performed using tube, gel, or ______ phase methods.

solid

AHG crossmatch interpretations are made at the ______ phase.

AHG

Donor RBCs must be ______ tested before AHG crossmatching.

antigen

Patients with warm autoantibodies may require ______ plasma for AHG crossmatching.

autoadsorbed

A compatible crossmatch does not guarantee successful transfusion or maximum RBC ______.

survival

Adverse transfusion reactions may still occur despite a compatible ______.

crossmatch

Each transfusion increases the risk of developing ______.

antibodies

Recipients who develop antibodies are more likely to require an ______ crossmatch.

AHG

The compatibility testing requisition must include the ordering ______.

physician

The requisition must include the patient's ______ identifiers.

2

The requisition must include patient location and clinical ______.

indication

Patient samples must be collected using proper ______ procedures.

collection

Acceptable patient identifiers include first and last name plus a unique ______.

number

The specimen tube must contain the phlebotomist's initials or ______.

signature

Blood bank specimens are generally valid for ______ days.

3

The day of collection is considered day ______.

0

Compatibility testing specimens are typically collected in ______ tubes.

EDTA

Acceptable specimen tubes are pink or ______ top tubes.

lavender

Hemolyzed or contaminated specimens must be ______.

recollected

Recipient record review should be performed before beginning ______.

testing

Current ABO and Rh typing results should be compared with ______ records.

previous

Record review should include previously identified unexpected ______.

antibodies

Record review should include any previous transfusion ______.

reactions

Pretransfusion testing includes ABO and ______ typing.

Rh(D)

Forward and reverse ABO typing results should ______.

match

ABO discrepancies should be resolved before ______.

transfusion

ABO/Rh testing is performed ______ times before transfusion.

2

Historical results may count as one ABO/Rh ______.

determination

The antibody screen uses unpooled reagent ______.

RBCs

Antibody identification and antigen typing are performed when ______.

necessary

RBC and whole blood donor units must be retyped to confirm correct ABO ______.

labeling

ABO testing is performed on ______ donor units.

all

Rh(D) testing may be performed only on Rh(D) ______ units.

negative

Weak D testing is ______ required on donor units.

not

Rh-negative units should be given to Rh-negative recipients whenever ______.

possible

Rh-negative units are especially important for women of ______ age.

child-bearing

Rh-negative blood should be given to patients who have formed ______.

anti-D

Antigen-negative units are required for antibodies in the Rh, Kell, Kidd, and ______ blood groups.

Duffy

If a patient has current or previous antibodies, donor units must undergo ______ typing before crossmatching.

antigen

Calculation of units to test requires knowing the frequency of ______ units.

negative

Only one crossmatch ______ is required.

method

Crossmatching demonstrates ABO incompatibility and clinically significant antibodies to RBC ______.

antigens

Problematic donor units should be placed in ______.

quarantine

A crossmatched donor unit tag requires ______ patient identifiers.

2

The tag must contain the patient's full name and unique identifying ______.

number

The donor unit tag must include the blood product name and any ______.

attributes

The donor unit tag must contain the unique donor unit ______.

number

The donor unit tag must include the unit expiration ______.

date

The donor unit tag must include the unit ABO and ______ type.

Rh

The donor unit tag must include the crossmatch ______.

interpretation

The donor unit tag must contain the technologist's ______.

identification

Blood product issue requires a physician's order and ______ slip.

pickup

The pickup slip must contain the patient's two ______.

identifiers

Issued units require comparison of recipient ABO/Rh type with the donor unit ______.

label

Special transfusion requirements must be checked before blood product ______.

issue

Donor units should be visually inspected for abnormalities, clots, temperature, and ______ date.

expiration

Documentation must include both the person issuing and person ______ the blood product.

receiving

Documentation must include the date and ______ of issue.

time

Documentation must include the intended ______ of the blood product.

destination

Unused donor units may be returned if they remain sterile and within time and temperature ______.

limits

RBC units issued on ice require temperature tags indicating ______ to ______ °C.

1; 10

Room temperature RBC units must be returned within less than ______ minutes.

30

Returned room temperature RBC units should immediately be placed in a ______.

refrigerator

Emergency release occurs before pretransfusion testing is ______.

completed

Emergency release requires a signed release form from the ordering ______.

physician

Emergency release units must be labeled ______ RELEASE.

EMERGENCY

The emergency release tag states compatibility/crossmatch not ______.

completed

The blood bank must retain donor unit ______ for future crossmatching.

segments

Emergency release documentation includes donor unit numbers, ABO/Rh results, and ______ dates.

expiration

Whenever possible, a patient sample should be drawn before beginning ______.

transfusion

Emergency release RBC units are typically group ______.

O

Historical records alone are not acceptable for issuing ABO type-specific blood without a current ______.

type

Once a sample is received and verified by two technologists, patients may be switched to ABO ______ blood.

type-specific

For infant testing, ABO/Rh(D) typing should be performed using a new sample rather than ______ blood.

cord

Infant ABO/Rh testing includes ______ typing only.

forward

The infant antibody screen may be performed using either maternal or ______ samples.

baby

If antibodies are present in infant testing, ______-negative units should be given.

antigen

Non-RBC blood products usually do not require ______.

crossmatching

Examples of non-RBC blood products include FFP, platelets, and ______.

cryoprecipitate

Crossmatching may be necessary when a patient has platelet or ______ antibodies.

HLA

Crossmatching may be necessary if a non-RBC product contains more than ______ mL of RBCs.

2

Blood inventory management balances adequate supply with minimal ______.

waste

MSBOS stands for Maximum Surgical Blood Order ______.

Schedule

MSBOS estimates the average number of blood products used during ______ procedures.

surgical