dermal puncture
Medical term Routine Blood Collections
Capillary collection: a lancet pierces the fingertip, or an infant's heel, to obtain a few drops of blood for microsample tests.
Sources
Free practice questions that use dermal puncture
- Routine Blood Collections, question 4How should the phlebotomist make the incision for a dermal puncture?
Related terms
- capillaryThe smallest blood vessel, where oxygen, nutrients and wastes pass between blood and tissue. A skin puncture…
- lancetSterile, single-use device that punctures the skin for capillary collection; its length is chosen for the…
- cold packCold compress applied to a hematoma in the first 24 to 48 hours to limit swelling, later followed by warm…
- collapsed veinA vein that flattens during the draw, often when a large tube or syringe pulls too hard on a small vein; use…
- crossmatchTesting done before a transfusion, except in emergencies, to check that donor blood is compatible with the…
- dehydrationA shortage of body water. Post-procedure care, as after a blood donation, includes encouraging fluids…
- dermisThe skin layer under the epidermis that contains capillaries and nerves; a dermal (skin) puncture reaches it…
- diaphoresisHeavy sweating. With pallor, nausea or dizziness during a draw, it can warn of a vasovagal reaction and…
- diastolic pressureThe second, lower blood pressure reading: arterial pressure between beats, while the ventricles rest and fill.
- discard tubePlain tube drawn first when a winged set is used and sodium citrate is the first tube, so tubing air does…