Equipment
Devices that are used for capillary specimen collections are?
Lancents
General site selection criteria include?
One that is warm, pink or normal of color, and free of scar, cuts, bruises, or rashes.
Most capillary punctures are?
Fingersticks.
What is kernicterus?
Brain dysfunction caused by toxic levels of bilirubin.
A properly collected capillary specimen can be a practical alternative to venipuncture when?
Small amounts of blood are acceptable for testing.
Small plastic tubes that are used to collect tiny amounts of blood obtained from capillary punctures are?
Microtubes
Why should you wipe away the first drop of blood?
It’s usually contaminated with excess tissue fluid and may contain alcohol residue.
Heel sticks are usually performed on infants less than how old?
1 year of age.
The blood specimen for what test is placed in circles on special filter paper?
PKU
What is tissue fluid from spaces between the cells called?
Interstitial fluid
Disposable, narrow-bore plastic, or plastic-clad glass capillary tubes that fill by capillary action and typically hold 50-75 uL of blood are?
Microhematocrit tubes
The CLSI- recommended site for capillary puncture on adults and children older than one year is?
Palmar surface of the distal segment of the middle finger of the non dominant hand.
Appropriate handling and transport protects what?
Specimen integrity.
Neonatal screening is testing of?
Newborns for certain disorders.
What tests can’t be cannot be collected by capillary puncture?
Erythrocyte sedimentation rate methods, coagulation studies that require plasma specimens, blood cultures, and tests that require large volumes of serum or plasma.
What device is especially important when preforming heel punctures on newborns?
Warming devices
Puncture of the bone can cause painful?
Osteomyelitis or Osteochondritis
You should notify the patients provider if bleeding hasn’t stopped after?
Five minutes.
What test cannot be collected by capillary puncture and taken to the lab for processing and testing?
PTT
Why should CBG‘s be collected first?
To minimize exposure of the blood to air and because clots in the specimen are unacceptable
What special equipment is used in CBG specimens?
CBG collection tubes, stirrers, magnet and plastic caps
Puncture deeper than what can cause bone damage?
2.4mm
Why is applying a bandage not recommended for infants?
It can become a choking hazard and also could tear the skin once removed.
What test requires an arterialized specimen?
Blood gases
What are blood capillaries?
Tiny vessels that connect the arterial and venous systems and were the exchange of gases and nutrients take place.