Chapter 10: Capillary Collection and Point-of-Care Testing

Capillary collection will not yield a large enough specimen for which of these tests?

• Bilirubin

• Glucose

• Erythrocyte sedimentation rate

• Blood gases

Why is the index finger not used for capillary collection?

• Because the bone is too close to the skin

• Because it is too easy to strike an artery

• Because it is usually calloused

• Because it has fewer capillaries than other fingers

Where on the finger should capillary puncture be performed?

• At the very tip

• Toward the top of the finger, on the fleshy part to either side

• In the center of the fleshy pad

• On the joint just above the hand

What is the name of the infection that may be caused if a lancet strikes bone?

• Osteomyelitis

• Osteopathy

• Osteoporosis

• Osteonia

Which of the following is true regarding lancet selection?

• It is best to use the highest-flow lancet available to ensure getting enough blood every time

• Any lancet can be used on any patient

• The best lancet to use is the smallest one that will produce adequate blood flow

• It is best to start with the smallest lancet available and perform a second puncture if it does not produce enough flow

The first drop of blood from a finger stick should be wiped away

• For every test

• For most tests

• Only the patient’s blood is not flowing well

• Only if the patient’s blood is flowing quickly

If no blood gas tests are ordered, which type of tube is filled first for capillary collections?

• Serum tubes

• Heparin tubes

• EDTA tubes

• Tubes with no additives

How long should a capillary puncture site be warmed?

• 30 seconds

• 1–2 minutes

• 3–5 minutes

• 10 minutes

A blade-style lancet should be positioned to cut _____________________ to the patient’s fingerprints.

• Perpendicular

• Parallel

• At a 30-degree angle

• At a 45-degree angle

Which of the following is true?

• Parents are never allowed to stay in the room while heel stick collections are performed on infants.

• Infants held by a parent during a heel stick collection may experience less pain.

• Infants tolerate heel stick procedures better if a parent is not present.

• Infants do not experience pain when heel stick procedures are performed.