The page below is a sample from the LabCE course Dermal Puncture and Capillary Blood Collection. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Dermal Puncture and Capillary Blood Collection (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 97 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Phlebotomy CE Package$45 Add to cart
Individual course$20 Add to cart

Protect Me From the Light

Some specimens routinely collected for testing by using a capillary puncture are adversely affected by exposure to light. One example is a specimen collected for bilirubin testing that is obtained from a newborn. When obtaining the specimen for this testing, it is important for the phlebotomist to recognize the effect of light on the specimen. Room light or sunlight can metabolize the bilirubin in the specimen to a different compound. This will cause a falsely lower bilirubin level. A neonatal bilirubin specimen should be obtained in a dark-colored (amber) container. Alternately, a clear or white container can be immediately wrapped in aluminum foil following the blood collection, preventing the blood from exposure to light.