swelling or mass of blood caused by leakage of blood from a vessel during or after venipuncture or arterial puncture
diurnal variations
normal fluctuations throughtout the day
Basal State
early in the morning while the body is at rest and approximately 12 hours after last intake of food, exercise, or activity.
What is the best indication that you have accidentally punctuated an artery
the blood pulses into the tube
which of the following should be avoided when selecting a venipuncture site?
a previous IV site within 24 hours of IV removal, an arm that has a heparin lock in the wrist area, and an arm with an arteriovenous (AV) shunt in the forearm
reasons to control temperature and humidity in laboratory
to establish reference values under controlled conditions, to ensure proper functioning of equipement, and to maintain speciman integrity
reflux
backflow of blood from a collection tube into a patent's vein during venipuncture
infection at the site following venipuncture can result from
touching the site after it has been cleaned
a phlebotomist must collect a hemoglobin on a patient in the intensive care unit. There is an IV in the patient's left arm. There is no suitable antecubital vein or hand vein in the right arm. What should the phlebotomist do?
collect the specimen by skin puncture of a finger of the right hand
timed (collected at a specific time)
tests influenced by diurnal variation are often ordered?
