Why is the first drop of blood wiped away quizlet?

The first drop of blood should be wiped away. … Why must the first droop of blood from a capillary puncture be wiped away? To remove tissue fluid. You are to collect by fingerstick a green top, lavender top, and a red top microcollection container.

Why must the first drop of blood be wiped away?

Wipe away the first drop of blood because it may be contaminated with tissue fluid or debris (sloughing skin). Avoid squeezing the finger or heel too tightly because this dilutes the specimen with tissue fluid (plasma) and increases the probability of haemolysis (60).

When should you clean a website before capillary puncture?

The alcohol must be allowed to air dry for approximately one minute prior to venipuncture to properly disinfect site, prevent hemolysis of the specimen, and avoid discomfort for the patient. Gauze should be used when applying pressure to the venipuncture site immediately after the needle is withdrawn.

IT IS INTERESTING:  Quick Answer: How many red blood cells can red blood cells produce each day?

Which of the following neonatal tests is required by law?

In addition to blood tests, screening for hearing loss and critical congenital heart disease (CCHD) is recommended for all newborns. Many states require this screening by law as well.

Which of the following is true about Microcapillary Collection Group of answer choices?

28 Cards in this Set

Which of the following is true about microcapillary collection? The first drop of blood should be wiped away
The depth of cut made by a lancet for a heel stick should be no more than 2 mm
What can happen if you squeeze the patients finger to vigorously during a capillary puncture? Hemolysis can occur

Should you squeeze your finger after pricking?

Be sure to prick the side of your finger, not the pad. Pricking the end of your finger can be more painful. Though it may be a tempting way to produce more blood quickly, don’t squeeze your fingertip vigorously. Instead, hang your hand and arm down, allowing blood to pool in your fingertips.

Can I use a lancet on my arm?

Whether testing alternate sites or at the fingertip, try the Accu-Chek ® FastClix lancing device—the only 1-click lancing device with a drum. Some blood glucose meters allow you to use a blood sample from a nonfingertip or alternate site such as your palm, forearm or upper arm.

Why is the order of collection so important?

Blood samples must be drawn by phlebotomists in a specific order to avoid cross-contamination of the sample by additives found in different collection tubes. Phlebotomy order of draw is the same for specimens collected by syringe, tube holder, or into tubes preevacuated at the time of collection.

IT IS INTERESTING:  Do ventricles contract during systole?

What are the reasons for obtaining capillary blood samples?

Reasons for obtaining capillary blood samples

May include: blood sugar determination, haemoglobin levels tests, blood typing, haemoglobin iron deficiency, cholesterol, prothrombin time test/INR for measuring clotting time.

What is the first step in performing a capillary stick?

Hold the finger in an upward position and lance the palm-side surface of the finger with proper-size lancet (adult/child). Press firmly on the finger when making the puncture. Doing so will help you to obtain the amount of blood you need. Cap the Microtainer® and gently invert it 10 times to prevent clots from forming.

Why is the first tube discarded when you are drawing from an indwelling line?

A phlebotomist is requested to go to a patient’s hospital room and draw sample from an unconscious patient. … Why is the first tube discarded when you are drawing from an indwelling artery line? To remove herpin/saline contamination. Which two arteries are occluded when performing the Allen test?

Can parents refuse erythromycin?

Some states, such as New York, do not allow parents to exercise their right to informed refusal. However, other states, such as Tennessee, have recently made changes to their state laws to allow parents to decline the erythromycin eye ointment for their infants.

Do they blood type newborns?

Blood type and factors are determined by genetics. A baby may have the blood type and Rh factor of either parent, or a combination of both parents. The Rh positive gene is dominant (stronger) and even when paired with an Rh negative gene, the positive gene takes over.

IT IS INTERESTING:  Quick Answer: What part of the heart does the obtuse marginal artery supply?

What is the order of draw?

The “Order of Draw” is designed to eliminate the possibility of cross contamination that may result in erroneous results. It is based on CLSI Procedures for Collection of Diagnostic Blood Specimens by Venipuncture; Approved Standard Sixth Edition, October 2007.

What happens if you underfill a tube with blood?

If tubes are underfilled, the blood:anticoagulant ratio may result in hemolysis. Avoid underfilling tubes by having an ample supply of tubes of various capacities.

What effect would leave a tourniquet on too long?

A prolonged tourniquet time may lead to blood pooling at the venipuncture site, a condition called hemoconcentration. Hemoconcentration can cause falsely elevated results for glucose, potassium, and protein-based analytes such as cholesterol.