Capillary Collection
Capillary collection is performed on..?
Capillaries
what does bleeding time measure?
the length of time required for bleeding to stop after an incision is made
When collecting blood from a vein in the back of the hand, where should the tourniquet be placed?
Just above the wrist
hemolysis is...
destruction of blood cells.
What is the maximum acceptable depth for a heel puncture?
2 mm
which finger is most widely used for capillary collection?
ring (4th digit)
what is the normal bleeding time?
2-10mins
Which of the following bones is close to the surface and at risk of being damaged during a heel puncture?
Calcaneus
hemoconcentration is..?
alteration in the ratio of elements in the blood.
What is the medical term for fainting?
Syncope
when performing a dermal puncture, the puncture should be?
perpendicular to the whorls of the fingerprint
how do you perform a bleeding time test?
an automated incision device is used, with the depth set at 1 mm, and length at 5 mm
how long should a heel warmer be applied to an infants heel before performing a heel stick?
3-5mins
What condition can be caused by the removal of lymphoid tissue as part of a mastectomy?
Lymphostasis
When you are unable to locate a vein after thoroughly examining a patient’s arm, what step should be taken next?
Examine the other arm for a vein
Which of the following is the preferred collection site for laboratory testing of a patient at high risk for venous thrombosis?
Dermal puncture
at what level does the blood pressure cuff remain during a bleeding time test?
40 mm Hg
where is the location for heel sticks?
medial or lateral borders of the plantar surface.
A large amount of bleeding into the tissues surrounding a puncture site (i.e., in a patient who takes anticoagulant medication) can cause what condition?
Compartment syndrome
Which of the following may cause a hematoma?
Going through the back side of the vein when inserting the needle
the use of povidone-idoine is not recommended for dermal punctures because it elevates test results for which tests..?
(BURPP) bilirubin, uric acid, phosphorus, and potassium.
how frequently should the blood be wicked during a bleeding time test?
every 30 seconds
Puncture of a bone during dermal puncture can result in what potentially serious and sometimes fatal bone infection?
Osteomyelitis
what is a sphygmomanometer?
blood pressure cuff
If an IV is in place and there are no other accessible sites, where should the blood specimen be collected?
Distal to the IV