Capillary and Pediatric draws

What device is used for capillary blood collection?

Lancet

What is the recommended lancet depth for children over 2 years old?

1.5mm to 2.4mm

What is the recommended lancet depth for adults?

2.0mm to 2.4mm

What types of containers can capillary blood be collected in?

Microcollection tube, microhematocrit tube, point-of-care testing, blood spot collection card

What is the order of draw for microcollection tubes?

EDTA, heparin, other additives, serum

What can point-of-care test strips measure?

Blood glucose, cholesterol, and other analytes

What is a blood spot collection card used for?

Infant testing and it has printed circles that show where blood should be applied

Which fingers are preferred for capillary collection?

Middle and ring finger on the non-dominant hand

Which areas of the finger should be avoided?

The center, edges, and the very tip

How can blood flow be improved before a capillary puncture?

Warm the hand

What should be avoided during capillary collection to prevent hemolysis?

Milking or excessive squeezing

How can blood flow be improved before a capillary puncture?

Warm the hand

Why must the first drop of blood be wiped away?

To remove contaminants such as tissue fluid

What needle type is recommended for pediatric venipuncture?

A winged infusion set (butterfly) with a 23G needle

What tubes should be used for a pediatric venipuncture?

Small pediatric tubes

What is the preferred vein in the AC fossa for children?

Median cubital vein

What should you never tell a child before a blood draw"?

That it will not hurt

What is the national standard for infant blood volume removal?

No more than 1-5% of total blood volume within 24 hours

What determines pediatric blood draw limits?

The child’s weight

What is the formula for maximum allowed blood volume?

Weight x 2 = maximum volume (mL)

What site is used for capillary collection in infants?

The heel

What is the maximum lancet depth for pre-term infants?

0.85 mm

What is the maximum lancet depth for full-term infants?

2.0 mm

Which areas of the heel are acceptable for puncture?

Medial and lateral plantar surfaces