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Phlebotomy

Phlebotomy Chapter 10

QuestionAnswer
How long should heel warmers be applied to an infant's heels? 3-5 minutes
What is the maximum acceptable width for a dermal puncture? 2.4mm
What over-the-counter medication is known to increase bleeding time? Aspirin
What is an appropriate dermal site for adults? Ring finger. perpendicular to the ridges
What is the usual site for performing a standard bleeding time test? Forearm, just below the antecubital crease
What is the standard incision size for a bleeding time test? 1.0mm deep by 5.0mm long
At what intervals should blood be wicked with filter paper when performing a bleeding time test? 30 seconds
What is the preferred collection site for laboratory testing of a patient at high risk for venous thrombosis? Dermal puncture
What test cannot be collected using a dermal puncture? Blood cultures
What is an appropriate site for dermal puncture on an infant’s foot? Medial and lateral borders of plantar surface
Puncture of a bone during dermal puncture can result in what potentially serious and sometimes fatal bone infection? Osteomyelitis
What screening test measures the overall integrity of primary hemostasis? Bleeding time
Betadine may elevate results of what test if used to clean the skin for a dermal puncture? Bilirubin, Uric acid, Phosphorus, Potassium
What is interpreted as a normal bleeding time? 6 minutes
When performing a bleeding time test, what pressure should the blood pressure cuff be inflated? 40mm Hg
What is the preferred method of blood collection in newborns and infants? Dermal Puncture
What is the maximum acceptable depth for a heel puncture? 2 mm
what is the maximum acceptable depth for a dermal puncture on an adult? 3 mm
What antiseptic may affect the results of tests for bilirubin, uric, potassium, and phosphorus from a dermal puncture and therefore should not be used on a dermal puncture? Povidone-iodine
What blood should be wiped away in dermal puncture? The first drop
What bone is close to the surface and at risk of being damaged during a heel puncture? Calcaneus
What is the recommended depth for a heel puncture on a premature infant? 0.65-0.85 mm
What is the steps during collection of blood by dermal puncture? Wipe away the first drop of blood with a dry, clean gauze pad
When should you record the time to a bleeding time test? When blood is no longer absorbed by the filter paper.
In what case would a capillary puncture be contraindicated? Severely dehydrated patients
Created by: CMA2022
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