PMLS 2 - MIDTERMS Flashcards by Toni Mae Inductivo

Which of the following is TRUE about
capillary blood?

-It is a mixture of both arterial and venous
blood.
-Glucose concentration is normally higher in
capillary blood.
-If contaminated with tissue fluid, potassium
level in this blood sample is falsely elevated

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Which of the following statements about
lactose tolerance test is INCORRECT?

It is recommended that a 2-hour GTT test
be administered at least a week before the
lactose tolerance test.

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This is a sharp bladed instrument used for
capillary puncture for the purpose of
incising the skin to obtain blood

Lancet

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Which of the following analytes is NOT
being measured in ABG analysis?

Packed cell volume

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The biggest advantage of choosing the radial
artery for arterial blood collection is:

Good collateral circulation is present.

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What is the rationale behind wiping the first
drop of blood during skin puncture?

-It minimizes contamination with tissue
fluid.
-This contains alcohol that can hemolyzed
the sample.
-This may result to inability to produce a
good drop of blood.

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Which of the following will elevate after a
high protein diet?

Urea

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What is the standard depth of incision for
capillary puncture in infants to prevent bone
injury?

less than 2.0 mm

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Puncturing the arch of heel can result to this
condition define as the inflammation of the
bone and cartilage.

Osteochondritis

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The doctor orders tests requiring a lavender
stopper tube, a light blue stopper tube for
coagulation studies, a white stopper tube, a
gold stopper tube and a set of blood cultures.
What is the correct order of draw?

Blood cultures, light blue, gold, white,
lavender

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After finishing a blood draw, the
phlebotomist must document all, EXCEPT;

Patient’s Blood type

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When is capillary puncture indicated in case
of adult patient?

-When veins should be saved for
chemotherapy
-When accessible veins sites are scarred or
burned

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You are about to perform a routine
venipuncture on a patient with no known
allergy to antiseptics. Which of the
following substances would you use to clean
the site?

70% isopropyl alcohol

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GDM only occurs in what type of
individuals?

Pregnant women

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The following increases with stress,
EXCEPT:

Iron

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Which of the following is NOT TRUE about
capillary tubes?

If there is a blue band color at the end, it
contains an additive.

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The central vascular access devices are used
primarily for:

administering fluids and medications,
monitoring pressures, and drawing blood

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Which of the following statement about
specimen requirements (during drug testing)
is INCORRECT?

During the collection, a proctor must not be
present to ensure that the identity of the
patient is protected.

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Disadvantage of puncturing the brachial
artery include the following, EXCEPT.

Increased risk of infection

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Specimens collected from which areas may
yield inaccurate test results.

both edematous and damaged veins

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What is the best angle for needle insertion
during ETS method of venipuncture?

15°-30°

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When performing arterial puncture, direct
the needle:

Perpendicular to the wrist and lower arm

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Prior to collection of ABG, a patient should
have been in a steady state for at least

20-30 minutes

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In site selection for skin puncture, which of
the following is TRUE?

Site should be warm and pink in color with
no bruises

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The following are reasons for specimen rejection, EXCEPT

Hemolyzed specimen

Late General Complication of Venipuncture, EXCEPT;

Thomophlebitis

Body position before and during blood collection can influence specimen composition. Going from supine (lying down on the back) to an upright sitting or standing position causes hemoconcentration.

True

Which of the following statements is true?

-cortisol is elevated from 6:00-8:00 am

Mr. Adarve will be collecting blood for Complete Blood Count. How many times should Mr. Adarve inverse the evacuated tube he needs to use?

8-10x

Which of the following statement about POCT is INCORRECT?

These tests are not only convenient, but it also lengthens the turnaround time (TAT).

What will happen if a needle is partially inserted into a vein?

Hematoma

Which of the following is affected by excessive drinking of water prior to blood test?

Electrolytes

After cleaning the venipuncture site with alcohol, the phlebotomist should;

Allow the alcohol to dry completely.

A trained phlebotomist should:

-Collect capillary blood quickly to minimize microclot formation. -Know that a venous blood can be collected using microtubes. -Collect specimen for newborn screening separately

ALL BUT ONE results to Hemolysis

Vigorous fist clenching of the patient

Whose blood results are used in determining the reference range or intervals?

healthy individuals in their basal state

Which of the following can be caused by blood leaking from a blood vessel during or following venipuncture?

Hematoma

A good blood drawer for arterial blood show good competence when performing modified allen’s test when

He uses middle and index finger to apply pressure on the wrist

Warming the capillary puncture site is associated with which of the following purposes?

Increase blood flow

During venipuncture, the phlebotomist observed that the patient appears pale with beads of sweat on the forehead. These are signs of:

Syncope

This is also called an indwelling line, comprises tubing inserted into a main vein or artery

central vascular access device

What is the required glucose load for children?

1g per kg body weight

You are asked to collect a blood specimen from an inpatient. The patient is not wearing an ID band. What is the best thing to do?

Ask the patient’s nurse to put an ID band on the patient before you draw the specimen.

The most important step in the performance of a venipuncture is

Identifying patients

Which of the following statements about ETOH specimen is FALSE?

Use green-top sodium chloride glass tubes for specimen collection.

When performing skin puncture and you warm the site, the sample is called as

Arterialized

Rapidly forming hematoma and blood filling the tube very quickly are signs that you have punctured:

an artery

Which of the following statement about drug screening is FALSE?

The specimen used is blood instead of urine.

In performing femoral arterial puncture, needle should be inserted at what angle?

90 degrees

Which of the following arterial puncture site poses the greatest risk of developing infection?

Femoral

A trained phlebotomist should

Apply the tourniquet 7.5-10 cm above the site of puncture

It is an indicator on how well air is exchanged between the blood and lungs

PCO2

Which of the following statements about DNA paternity testing is CORRECT?

Sealed and tamper-evident package are used to hold the specimen during transportation to the laboratory.

Which of the following tests require arterial blood as specimen?

Blood gases

A sudden position change of the patient before collecting blood sample may result to

Both Hemoconcentration and Hemodilution

Smoking stimulates the body’s immune response and increases the production of antibodies

False

Which of the following equipment is not necessary for blood gas collection?

Disposable tourniquet strap

Which of the following statement about POCT is INCORRECT?

Several manufacturers recommended disinfecting the instrument using 70% isopropyl alcohol to reduce the risk of cross contamination

A 2 months old baby was sent to the laboratory for CBC testing. You are to perform capillary puncture. What is the best site to use for the patient?

Lateral plantar heel surface

Capillary puncture equipment includes all of the following, EXCEPT;

Evacuated tubes

Ms. Recto wasn’t able to collect blood from Mr. Domingo. She attempt collecting blood twice, but still failed. What should Ms. Recto do?

Ask another phlebotomist to draw blood from patient.

Which of the following statements about lactose tolerance test is INCORRECT?

If the patient is glucose intolerant, the result will yield a "flat" curve where lactose levels just slightly rise over the fasting level.

Which of the following would you think make an arterial blood acceptable for ABG testing in the laboratory?

The blood is collected in an anaerobic manner

Blood gas specimen rejection criteria include all of the following, EXCEPT:

None of the choices -Inadequate volume of the specimen -Improper labeling or missing label. -Visible hemolysis of the specimen (if not use for electrolytes too)

In locating the vein to be used for venipuncture, the phlebotomist should;

-Feel the vein using index and middle finger. -Palpate and trace the path of vein.

How much volume of blood is withdrawn in therapeutic phlebotomy?

500.0 ml

Which of the following is a disadvantage of using radial artery for ABG collection?

It is small and difficult to feel

The tourniquet should be released

-Within 1 minute of its application. -As soon as the blood flow is established. -Before needle removal from the arm.

What is the indication if the phlebotomist already hit the vein using syringe method?

You should see a blood that appears in the hub

A patient who has a collateral circulation:

Has multiple arteries supplying blood to an area

In administering local anesthetic before arterial puncture, which of the following statement is TRUE?

-0.35 mL 1% lidocaine is adequate to use for some patient -There should be appearance of wheal after administration

What is the required glucose load for adults?

75 g

These are tiny, non-raised red (or purple) spots that appear on the patient’s skin when a tourniquet is applied. Presence indicates capillary wall defects or platelet abnormalities.

petechiae

Which of the following statements about ETOH specimen is FALSE?

-The collection uses aqueous povidoneiodine and aqueous 70% isopropyl alcohol.

Other sites where arterial specimens may be obtained include the following, EXCEPT;

Common carotid artery in the neck

Which of the following statement about POCT is INCORRECT?

POCT is also known as alternative sight testing (AST)

Which of the following statement about drug screening is FALSE?

The chain of custody protocol is not implemented since legal implications are not usually involved.

Controlling the depth of lancet insertion during heel puncture is necessary to avoid which of the following effects?

Bone injury

ALL BUT ONE cannot be used as site for venipuncture.

Dorsal part of the hand

Which of the following statements about lactose tolerance test is INCORRECT?

The GTT curve and the glucose curve will be different if the patient has mucosal lactase.

In new born screening, you should not

Collect sample within 24 hours after birth.

Which of the following is considered as the primary site-selection criteria for arterial puncture?

Presence of collateral circulation

A good phlebotomist show competence on performing skin puncture when, EXCEPT

He punctures the 4th finger on the same side of mastectomy.

A vein which is obstructed, hard and cordlike, and lacks resiliency is

sclerosed

Which of the following is NOT TRUE about neonatal bilirubin collection?

This is used for detection of an increased bilirubin level due to RBC hemolysis.

Forceful aspiration of blood during a syringe draw will result to hemolyzed specimen.

True

ALL but ONE causes Hematoma.

Transfixation of vein

An arteriovenous shunt is typically created to be used for dialysis.

True

In using microcollection containers, which of the following should be filled up first with blood sample?

Purple top

A good phlebotomist show competence on performing venipuncture using evacuated tube system when, EXCEPT;

The phlebotomist unties the tourniquet after removing the needle

Which of the following is an acceptable blood smear?

Has smooth transition from thick to thin

What is the best choice of vein for a normal healthy individual?

Median cubital vein

The capillary blood can be used as sample for ABG provided that the site is warmed prior to blood collection.

True

Which of the following actions shows competence in phlebotomy?

Using a g23 needle for pediatric patients

Which of the following is not included in testing for ABG using POCT?

-All are included -CO2 -Ph -HCO3 -PCO2

Which of the following is the primary reason of obtaining arterial blood in the hospital setting?

For evaluation of respiratory function -For arterial blood gas analysis

Which of the following needle has the largest diameter?

18 gauge

Which of the following statement about specimen requirements (during drug testing) is INCORRECT?

Waterless urinal is not allowed

Blood collection tubes are labeled:

Immediately after specimen collection.

A conscious patient does not have an identification bracelet. The name and room number on the door agree with the information on the request. What should the phlebotomist do?

Ask the patient for verbal verification of his or her name

Potassium levels in the blood increase after heavy exercise.

True

ALL BUT ONE is a test that cannot be performed by capillary puncture.

Coagulation studies

Which of the following equipment is not needed in performing ETS method of Blood collection?

Luer adapter

This site is considered as the most commonly used site in performing arterial puncture

Radial

PMLS 2 - MIDTERMS Flashcards

(104 cards)