Capillary Puncture Equipment and Procedures

Question 1

Also known as “micro-tube”

Answer 1

Micro-Collection Containers

Question 2

Used for blood films for hematology

Answer 2

Microscope Slides

Question 3

TRUE or FALSE:
Intracellular fluid fills the spaces around the cells and these are filtered from the blood capillaries and drained away as lymph

Answer 3

FALSE

Question 4

TRUE or FALSE:
Although potassium values are normally lower in properly collected skin puncture
specimens, levels may be falsely elevated if there is tissue fluid contamination or hemolysis of
the specimen.

Answer 4

TRUE

Question 5

It is a method that uses a lancet to make a small incision in the capillary bed in the skin to obtain a small volume of blood specimen.

Answer 5

Capillary Puncture or Skin Puncture

Question 6

What are the two types that are used in capillary puncture?

Answer 6

Finger Puncture Lancet and Heel Puncture Lancet

Question 7

TRUE or FALSE:
Very few chemical differences exist between arterial and venous blood:
* Glucose level is lower

Answer 7

FALSE

Question 8

TRUE or FALSE
Capillary puncture is generally appropriate for patients who are dehydrated or
have poor circulation to the extremities from other causes, such as shock, because specimens
may be hard to obtain and may not be representative of blood elsewhere in the body.

Answer 8

FALSE
ANSWER:
Capillary puncture is generally not appropriate for patients who are dehydrated or
have poor circulation to the extremities from other causes, such as shock, because specimens
may be hard to obtain and may not be representative of blood elsewhere in the body.

Question 9

I t refers to the specific sequence with which blood must be drawn and collected in tubes to avoid cross contamination of additives between the tubes.

Answer 9

Order of Draw

Question 10

TRUE or FALSE:
Although light blue top micro-tubes are available from some manufacturers, they are
not to be used for capillary specimens. They are intended to be used for venous blood collected
by syringe in difficult draw situations.

Answer 10

TRUE

Question 11

TRUE or FALSE:

The skin of the incision site should be pink, normal in color, and warm

Answer 11

TRUE

Question 12

TRUE or FALSE:

For infant, the incision site should be more than 2.0 mm deep and to avoid bone damage

Answer 12

FALSE

Question 13

TRUE or FALSE:
The temperature of the material used to warm the site must NOT exceed 42°C
(108°F)

Answer 13

TRUE

Question 14

TRUE or FALSE:

In capillary puncture procedure, do not wipe away the first drop of blood.

Answer 14

FALSE

Question 15

TRUE or FALSE:

In Finger Puncture Precautions, do not puncture fingers of infants and children under 1 year of age.

Answer 15

TRUE

Question 16

A bright red blood found in the pulmonary vein, left chamber of the heart

Answer 16

Arterial Blood

Question 17

TRUE or FALSE:

During finger puncture, the patient’s arm shouldn’t be extended

Answer 17

FALSE

Question 18

Used to increase the blood flow seven-fold by warming the puncture sit

Answer 18

Warming devices

Question 19

Preferred specimen for infants, young children, elderly patients and
patients with severe burns

Answer 19

Capillary Blood

Question 20

Special equipment used for collecting capillary blood

gas specimen

Answer 20

Capillary Blood Gas Equipment (CBG)