Chapter 10

Multiple Choice

Which of the following is a key safety feature required by OSHA for lancets used in capillary puncture?

• Adjustable depth setting

• Permanently retractable blade or needle point

• Reusable metal construction

• Built in alcohol swab

Multiple Choice

Microcollection containers, often called “bullets,” are primarily used to:

• Store Large Blood Volumes

• Perform Blood Cultures

• Separate Serum From Plasma

• Collect Small Amounts of blood from Capillary Punctures

Multiple Choice

Which patient scenario is NOT an appropriate indication for capillary puncture?

• Adult with difficult to access veins

• Infant needing a newborn screening test

• Patient in shock with poor peripheral circulation

• Child requiring a small volume blood test

Multiple Choice

Which test should NOT be performed using a capillary specimen?

• Blood Glucose

• Complete Blood Count

• Neonatal Bilirubin

• ESR

Multiple Choice

What is the correct CLSI-recommended order of draw for capillary specimens?

• A. Serum, EDTA, blood gas, other additives

• B. Blood gas, EDTA, other additives, serum

• C. EDTA, serum, blood gas, other additives

• D. Other additives, blood gas, EDTA, serum

Multiple Choice

For adults and children older than one year, the preferred site for capillary puncture is:

• A. The palmar surface of the thumb

• B. The palmar surface of middle or ring finger

• C. The lateral side of the index finger

• D. The heel

Multiple Choice

Why must the site be warmed before collecting a capillary blood gas specimen?

• To reduce the risk of infection
  
  

• To arterialize the specimen and increase blood flow

• To prevent clotting

• To make the skin easier to puncture

Multiple Choice

Which disorder is NOT part of the core group for which all U.S. states require newborn screening?

• A. Phenylketonuria (PKU)

• B. Hypothyroidism

• C. Galactosemia

• D. Diabetes mellitus