Chapter 5

Question 1

What is the correct angle to hold the needle when performing a venipuncture/

Answer 1

20 degrees

Question 2

What is a blood culture used for?

Answer 2

Bacteria

Question 3

What are three things that must occur when an infant’ capillary blood is done?

Answer 3

1. Circles on paper must be totally saturated. 2. The blood must be applied to only 1 side of paper w/o using capillary tubes. 3. Sample should be kept away from direct sunlight while drying.

Question 4

Fecal specimen collection is used to detect what?

Answer 4

Colorectal Cancer.

Question 5

Cystoscopy and biopsy is used to determine what?

Answer 5

Urinary bladder cancer.

Question 6

Endoscopy is used to determine what?

Answer 6

Lower esophageal cancer and diverticulosis.

Question 7

UTI’s are usually determined by what type of urine specimen?

Answer 7

A clean-catch midstream specimen.

Question 8

Patients and MA’s need to be careful with collection of sputum samples for what reason?

Answer 8

The collection containers have a poisonous preservative inside them.

Question 9

Tubes for culture and sensitivity tests may be kept at room temperature for up to how many hours?

Answer 9

72

Question 10

Sealed or locked transfer bags are used for what?

Answer 10

Chain of custody.

Question 11

Catheter

Answer 11

A hollow flexible tube inserted into a vessel or cavity to withdraw fluids.

Question 12

Chemical reagent strip testing.

Answer 12

Urinalysis with plastic strips with chemical reagent pads on them.

Question 13

Dermal puncture

Answer 13

AKA: Finger stick, heel stick, capillary draw or skin puncture. (Skin is lanced.)

Question 14

EDTA

Answer 14

Ethylenediaminetetraacetic acid. An anticoagulant to keep blood specimens from clotting.

Question 15

Enteric

Answer 15

Pertaining to the intestines.

Question 16

Galactosemia

Answer 16

Lactose intolerance

Question 17

Hematocrit

Answer 17

The percentage of blood that contains packaged red blood cells.

Question 18

Occult blood

Answer 18

Blood that comes from a source that can not be immediately determined, like from an ulcer.

Question 19

PKU

Answer 19

A metabolic genetic disorder from a deficiency in hepatic enzyme phenylalanine hydroxylase.

Question 20

The correct “order of the draw” when filling collection tubes is what? (6)

Answer 20

1. Blood cultures or sterile specimens. 2. Blue top tube. 3. Red top tube. 4. Green top tube. 5. Lavender top tube. ^. Grey.

Question 21

What are the three complications that can occur if the tourniquet is not released after 1 minute in a venipuncture?

Answer 21

1. Blood cells break and sample becomes hemolyzed (hemolysis). 2. Petechiae appear on skin. 3. hemoconcentration (forces fluids out of veins and into skin.)( Inaccurate results.)

Question 22

Red topped tubes are used for:

Answer 22

Serum glucose, Elecrtolytes, and BUN (blood urea nitrogen)

Question 23

Lavender top tubes are used for:

Answer 23

CBC (Complete blood count)

Question 24

Blue topped tubes are used for:

Answer 24

Coagulation tests.