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Phleb Ch 7
Quiz
Question | Answer |
---|---|
Depth of the cut on a full term infan, no deeper than? | 2mm |
The safe area for heel punctures on an infant are? | The most medial and lateral portion of the plantar surface |
Capillary puncture: why remove the 1st drop? | To remove interstitial (tissue) fluid |
Warming the puncture site | Increases the blood flow (arterioles/capillaries) sevenfold |
Capillary puncture is most likely to become contaminated by? | Hemolysis |
If the blood is drawn too quickly the vein will most likely? | Collapse |
Hemolysis can occur when? | You are squeezing/milking the pt with too much pressure |
What is the 1st test required for newborn infants? | PKU |
Holding still and keeping calm | Are critical to obtaining accurate samples from peds pts |
Draws on children under 2 years | Use superficial veins with a 23 gauge butterfly system |
When a pt blood flow is inadequate due to dehydration/poor circulation (shock) what can the PBT do? | Warm the site for 3-5min or massage near the site |
Puncturing a edematous finger? | Will contaminate the sample with tissue fluid |
Always cut a capillary puncture | Across the fingerprint |
Elevated potassium, phosphorous or uric acid within a capillary puncture is caused by? | Cleaning the site with povidone-iodine (Betadine) |
Scraping the blood off the skin surface can? | Hemolyze the cells & stop the free flow of blood |
Capillary puncture depth for premature infants? | 0.85mm |
Excessive crying can result in? | Elevated WBCs (leukocytes) |
BLGOR | blood gases, lavender EDTA, green (heparin), other additives, red (no additive) |