Phlebotomy Final

you should never recap a needle

true

palpate means to

examine by touch

The purpose of a Discard Tube is to?

take air out of butterfly set

What tube should you always reject for testing if under or over filled?

Light blue sodium citrate

Grossly Hemolyzed specimens can effect the test results due to the rupturing of

RBCs

You should never draw above an IV since the IV fluid can dilute or cause falsely elevated results.

true

Firmly anchoring the vein prior to needle insertion is necessary to prevent:

the vein from rolling

It is important to tie the tourniquet tight enough to help find the vein.

true

The order of draw does not matter especially when it comes to Blood Culture collection.

false

Strict adherence to aseptic technique during specimen collection is essential to ensure that a positive blood culture is not caused by external contamination.

true

When blood is inoculated into blood culture bottles using a winged blood collection set, the:

aerobic bottle is inoculated first

Peak and trough levels are collected to monitor:

therapeutic drug levels

Potassium and Glucose can be altered if not removed from the cells in a timely matter.

true

One of the main advantages of point-of-care testing (POCT) is:

faster turnaround time for results

Package inserts can be interchanged between kits from different manufacturers.

false

What can affect a POCT strip?

Light and moisture

Most common method of phlebotomy

venipuncture

main functional area of responsibility for a phlebotomist

preanalytic process

Which of the following is not PPE

10% sodium hypochlorite

which diseases require droplet precautions

rubella and varicella

what does a patient have rights to?

Billing assistance, quality healthcare, a role in their own care

disinfectants kill microorganisms

true

error that could result in patient dying

misidentification

Conditions that require contact precautions

Herpes Simplex, Wound infections

When should healthcare workers change their gloves

after every patient

When should a needle stick injury be reported?

immediately

Which analytical phase is labeling the specimen included in?

preanalytical phase

Which analytical phase is storing specimens appropriately included in?

postanalytical phase

Which analytical phase is reconciling discrepancies in laboratory findings included in?

analytical phase

Phlebotomists have clinical, technical, and clerical duties included in their job

true

What is plasma?

The liquid portion of blood that has been drawn into a tube with an anticoagulant in it

Which anticoagulant does not bind calcium?

heparin

What analyte does hemolysis affect?

potassium

failure to obtain blood can be caused by loss of vacuum

true

tube inversion prevent microclots

true

under or over filled light blue sodium citrate tubes will always be rejected

true

The most economical and safest method for venipuncture is

ETS and straight needle

The ratio of blood to anticoagulant in a light blue tube

9:1

Anticoagulant in a light blue tube

sodium citrate

The difference between plasma and serum

plasma contain fibrinogen

The larger the number, the bigger the needle.

false

appropriate needle gauge for small, fragile, veins

23 gauge

prolonged application of tourniquet will cause

hemolysis

Prior to bandaging the puncture site, you should

examine the site for bleeding

What does bracing the hand holding the needle against the patient's arm do?

prevent excessive needle movement

An abnormal accumulation of fluid in tissues

edema

fistulas are seen in patients who

are receiving dialysis

When collecting blood from a patient with an IV line

draw from the other arm if possible

test with the highest priority

STAT

most important consideration when collecting a blood culture

aseptic technique

place samples that require immediate chilling in

ice and water

chain of custody

documentation of sample handling for legal samples

Samples with cold agglutinins should

be kept warm

Blood cultures may be ordered STAT because

Microorganism levels fluctuate, often spiking just before a patient's temperature spikes, and they may need to be start antibiotics

samples for tests with diurnal variation must be collected

at specific times

lipemic serum appears

cloudy

If the patient begins to faint

remove the needle and tourniquet

you can redirect a needle if blood does not immediately flow

true

let the alcohol dry before collecting blood.

true

what do blood culture detect?

septicemia

plasma cortisol levels are collected be drawn between 0800 and 1000 because

cortisol exhibits diurnal variation

Peak and trough levels are collected to monitor

therapeutic drug levels

When does the timing for an oral glucose tolerance test begin?

When the patient finishes drinking the glucose

Blood cultures need to be mixed/inverted

true

serum or plasma that appears red suggests

potassium levels will be falsely elevated

If a specimen labelled protect from light is not protected from light, it must be recollected

true

If a cold agglutinin sample is refrigerated

the results will be falsely decreased

A trough level is drawn

before the next dose is given

a peak level is drawn

after the dose is given

In what laboratory phase are critical values addressed?

postanalytical phase

Which laboratory phase is patient identification in?

preanalytical

two levels of commercial quality control samples are performed to determine:

The reliability of the test system, proper storage of test materials, correct performance

A blood collector performing a test on s standardized sample sent from a monitoring agency is

proficiency testing

POCT testing is performed at the patient's bedside

true

to determine proper maintenanc of a glucometer, the blood collector should

read the package insert

if an operator is not performing a test properly, this will be detected through

quality control

manufactured controls purchased separately from kits with known values are called

external controls

control type that is used in test kit systems to verify the performance of reagents and test kit

internal control

an operator reads a test too early. What type of error is this?

A manual differential is a POCT.

false

blood leaking from a vein into the surrounding tissue will cause

hematomas

a patient who appears pale and has cold, damp skin may develop:

syncope

a hematoma may be caused by

selecting a needle too large for the vein

Which phases are blood collectors involved in?

pre and post examination

the purpose of sodium fluoride in gray stopper tubes is

to preserve glucose

The vein of choice for routine venipuncture is

median cubital

physician's approval is required when collecting blood from

foot veins

hemoglobin can be aPOCT test

true

What can cause hemolyzed samples?

use of a 21 gauge needle

reccomended disinfectant for body fluid contamination

sodium hypochlorite

written consent is required to

send test results to healthcare providers

an example of improperly disposing venipuncture supplies

recapping a needle

prolonged application of a tourniquet causes

the plasma portion of blood to be pushed into the tissues, resulting in hemoconcentration

best needle for geriatric patients

23 gauge with a butterfly

cold agglutinins should be kept at

37 degrees C

why should a dermal puncture site be warmed?

increases blood flow

prolonged fasting may result in

decreased glucose

posture change from supine to erect may cause

increased cholesterol and triglycerides

chemotherapy may cause

decreased WBCs and platelets

smoking may cause

increased hemoglobin