Phlebotomy Essentials 5th Edition Chapter 10

95 terms by purpleluv1980

Create a new folder

Advertisement Upgrade to remove ads

"Arterialized" means

Arterial content has been increased

A blood smear is:

Blood spread out on a microscope slide

The calcaneus is a bone located in the:

Heel

This is the abbreviation for a pulmonary function test:

CBG

A cyanotic extremity would:

Be bluish in color

A differential test is unable to determine:

Packed cell volume

"Feather" is a term used to describe the appearance of:

The thinnest area of a blood film

Fluid in the spaces between the cells is called:

Interstitial fluid

This is a sharp-pointed device used to make capillary punctures:

Lancet

Which of the following statements most accurately describes capillary puncture blood?

A mix of venous, arterial, and capillary blood

Which statement concerning microhematocrit tubes is incorrect?

They are coated with lithium heparin

Referring to fig. 10-1, identify the letters of the fingers that are recommended as sites for capillary puncture:

C and D

Osteochondritis is:

Inflammation of the bone and cartilage

This is a term for the bottom surface of the heel:

Plantar

Whorls as related to capillary puncture are:

Spiral patterns of fingerprints

The temperature of heel warming devices should never exceed:

42 degrees C

Which of the following is the medical term for a finger bone?

Phalanx

CBG specimens are collected in:

Narrow-bore capillary tubes

Capillary specimens contain:

All of the above: Arterial blood, tissue fluids, venous blood

Which numbered arrows on the diagram of an infant's foot in Fig. 10-2 point toward the safest areas for capillary puncture?

3 and 4

Which of the following are required characteristics of capillary puncture lancets?

All of the above: A controlled depth of puncture, Blades or points that are sterile, permanently retractable blades

Which of the following equipment is used to collect a manual packed cell volume test?

Microhematocrit tube

Which of the following equipment should be deleted from a list of capillary blood gas equipment?

Filter paper for blotting

Which capillary specimen should be collected separately?

NBS

A microcollection container is sometimes called a:

Bullet

The composition of blood obtained by capillary puncture more closely resembles:

Arterial blood

If venous blood is placed in a microtube, it is important to:

Label it as a venous specimen

A laboratory report form should state that a specimen has been collected by capillary puncture:

Because results can vary by specimen source

Blood collected by puncturing the skin is called capillary blood because:

It is from the dermal capillary bed

This test is typically performed on capillary blood:

PKU

Reference values for this test are higher for capillary specimens:

Glucose

You need to collect blood cultures, and green, light blue, and purple top tubes on an adult with difficult veins. Which of these can be collected by skin puncture?

Green top and purple top

If collected by capillary puncture, which of the following specimens should be collected in an amber microtube?

Bilirubin

Situations that require a venipuncture instead of capillary puncture include when a:

Light blue top tube has been ordered

Which of the following patient conditions would make capillary puncture a good choice for specimen collection?

Iatrogenic anemia

Which of the following is normally a proper site for finger puncture on an adult?

Distal segment of the middle finger

Which of the following would be excluded form a list of reasons why capillary puncture is the preferred method to obtain blood from infants and children?

Results on capillary specimens are more accurate

Which of the following sites would normally be eliminated as a capillary puncture site?

Index finger of a woman

It is necessary to control the depth of lancet insertion during heel puncture to avoid:

Injuring the calcaneus

According to CLSI, depth of heel puncture should not exceed:

2.0 mm

Which of the following can be a complication of a heel puncture that is too deep?

Osteomyelitis

Which of the following is the safest area of an infant's foot for capillary puncture?

Medial plantar heel

A recommended capillary puncture site on children 2 years of age or older is on the:

Pad of a middle finger

In which of the following areas does capillary specimen collection differ from routine venipuncture for tests that can be collected either way?

Order of draw

The distance between the skin surface and the bone in the end segment of a finger is:

Shortest at the side and the tip

The major blood vessels of the skin are located:

At the dermal-subcutaneous junction

A capillary puncture that parallels the whorls of the fingerprint will:

Allow blood to run down the finger

A list of capillary puncture equipment would exclude:

Blood culture bottles

Which color-coded microtube would be used to collect a CBC?

Lavendar

If the following tests are collected from a patient by capillary puncture, which test specimen is collected first?

CBC: Bilirubin, CBC, Lytes, Glucose

What is the purpose of warming the site before capillary puncture?

Increase the flow of blood

For accurate results, the heel must be warmed before capillary specimen for this test:

CBG

The recommended antiseptic for cleaning capillary puncture sites is:

70% isopropanol

The antiseptic must be completely dried before performing capillary puncture to avoid:

Specimen hemolysis

Test affected by povidone-iodine contamination of a capillary specimen include:

All of the above; Phosphorus, Potassium, Uric Acid

Errors in capillary glucose results have been attributed to:

Isopropanol contamination of the specimen

Proper finger puncture technique would exclude:

Puncturing parallel to the fingerprint

Hemolysis of a capillary specimen can erroneously elevate results for this test:

Potassium

One purpose of wiping away the first drop of blood (fig. 10-4) during capillary specimen collection is to:

Reduce tissue fluid contamination

Which of the following actions taken while filling microcollection tubes would be considered incorrect technique?

Scooping up blood as it runs down the finger

Which of the following would be least likely to introduce excess tissue fluid into a capillary puncture specimen?

Wiping the alcohol dry

Which of the following can result in microclot formation in a specimen collected in an anticoagulant microtube?

Overfilling the tube

During multisample capillary specimen collection, blood smears and edta specimens are obtained before other specimens to minimize:

Effects of platelet aggregation

A blood smear is required for this test:

Manual differential

An acceptable routine blood smear:

Has a feathered edge

A blood smear prepared from an EDTA specimen should be made:

Within 1 hour of specimen collection

When making a blood smear by hand using two glass slides, the typical angle required of the spreader slide is:

30degrees

If the phlebotomist makes a blood smear that is too short, he or she should try again and:

Decrease the angle of the spreader slide

It is unlikely that hold in a blood smear would be caused by:

Low hemoglobin

Collection of a thick blood smear may be requested to detect:

Malaria

Iron fillings used in capillary blood gas collection:

Help mix anticoagulant

Which statement concerning capillary blood gases is untrue?

Results are much more accurate than ABG's

An infant may require a blood transfusion if blood levels of this substance exceed 18 mg/dL

Bilirubin

Phenylketonuria is a:

Genetic disorder involving phenylalanine metabolism

Which of the following is a newborn screening test?

GALT

Falsely decreased bilirubin results can be caused by:

Failing to protect the specimen from light

Which of the following is least likely to contaminate a PKU test?

Using isopropyl alcohol to clean the site

Correct newborn screening test collection of handling includeds:

Using one large drop to entirely fill a collection circle

Neonatal screening for this disorder is required by law in the United States:

PKU

Jaundice in a newborn is associated with high levels of:

Bilirubin

It is inappropriate to apply a bandage to a capillary puncture site on an infant or child younger than 2 years of age because it can:

All of the above: Irritate the infant's tender skin, pull off & be a chocking hazard, tear delicate skin when removed

Which of the following action words associated with capillary puncture procedures steps are in the correct order?

Warm, clean, puncture, wipe, collect

The best way to mix blood in an additive microtube is to:

Invert it gently

Strong repetitive pressure, such as squeezing or milking a site during capillary specimen collection:

Can hemolyze and contaminate specimens

Which of the following collection devices fill by capillary action?

Hematocrit tubes

Which of the following equipment is reusable?

Laser Lancet

Lancets with permanently retractable blades are disposed of in the:

Sharps container

Capillary puncture is a poor choice for specimen collection if the patient is:

Dehydrated

Which of the following steps should be omitted from infant heel puncture?

Apply bandage

After making a blood smear:

Let it dry naturally

Which test must be collected by venipucture?

Blood culture

Neonatal screening is the testing of:

Newborns for certain disorders

Microhematocrit tubes with a red band on one end contain:

Heparin

In an infant's heel, the area of the vascular bed that is rich in capillary loops is located:

Between .35 and .82 mm deep

Which of the following capillary puncture techniques is incorrect?

Press the lancet down into the skin so it does not slip

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set