Table 1-1. Copper sulfate method.
above acceptable limits. Test results that indicate satisfactory hemoglobin levels are
usually accurate, but some results that indicate low hemoglobin levels are false.
Repeating the test by a second method will help resolve this problem.
(b) Test procedure for fingerstick. Clean the site of skin puncture
thoroughly with antiseptic solution and wipe dry with sterile gauze. Puncture a finger
slightly to the side with sterile disposable lancet. A good free flow of blood is important.
Do not squeeze the finger as this may dilute the drop with excess tissue plasma and
give false results. Collect blood in a capillary tube without allowing air to enter tube. Let
one drop of blood fall gently from the tube at a height of about 1 cm above the surface
of the proper sulfate solution. Observe for 15 seconds. Record results less than 12.5
gm or greater than 13.5 gm, and so forth. Spectrophotometric methods--use standard
techniques. Hematocrit measurement--use standard techniques.
MEDICAL HISTORY OF POTENTIAL DONORS
a. Some very specific questions will be necessary but a great deal of pertinent
information can be obtained by asking some general or leading questions in simple
language that the donor can understand.
b. The examples given below include all requirements and are followed by
suggested or required response to information received.