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Flashcards in Patient Test Management Deck (69)
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1

Define a Chain of Custody.

Chain of custody refers to the chronological documentation, and/or paper trail, showing the procurement, custody, control, transfer, analysis, and disposition of the specimen.

2

What is the purpose of a chain of custody?

a chain of custody form is required for any specimen used as legal evidence in court.

3

CPOE

Computerized Provider Order Entry (CPOE)

4

Computerized Provider Order Entry (CPOE)

CPOE is a computerized process for health care providers to electronically enter and order medical procedures and laboratory tests based on a predetermined algorithm.

5

CPT

Current Procedural Terminology

6

What is the purpose of Current Procedural Terminology (CPT) codes?

The purpose of CPT is to provide a uniform language accurately describing medical, surgical, and diagnostic services.

7

Name two reason that a CPT code might have a modifier.

1. a service or procedure has both a technical and professional component2. a service or procedure was performed by more than one physician and/or in more than one location

8

What does a -26 CPT code modifier stand for?

26 - Professional Component

9

What does a -59 CPT code modifier stand for?

59 - Distinct Procedural Service

10

What does a -91 CPT code modifier stand for?

91 - Repeat Clinical Diagnostic Laboratory Test

11

Define a reference range.

A reference range is a collection of normal values for a constituent of clinical interest.

12

CFR

Code of Federal Regulations

13

How much blood is present in the average adult male?

 5 quarts

14

What is the composition of blood in an average adult male?

5 quarts of blood; 3 quarts of plasma and 2 quarts of cells

15

What are blood cells suspended in in the human body?

plasma

16

What are red blood cells?

erythrocytes; delicate, round, biconcave bodies that contain hemoglobin that is used to transport oxygen to the tissue and carbon dioxide to the lungs.

17

Name 5 ways that hemolysis can occur.

1. improper handling of a blood specimen;2. dilution;3. exposure to contaminants;4. extremes in temperature; 5. pathological conditions

18

How does hemolysis occur?

when the thin protective membrane of red blood cells is ruptured and hemoglobin is released into the plasma.

19

What type of cell in the blood is responsible for hemolysis?

red blood cell or erythrocte

20

What is the primary purpose of white blood cells?

Leukocytes fight infection

21

How would one obtain serum?

Serum is obtained from clotted blood that has not been mixed with an anticoagulant. The clotted blood is then centrifuged, yeilding serum.

22

anticoagulant

a chemical that prevents the clotting of blood

23

What two types of proteins does serum contain?

albumin and globulin

24

What type(s) of tubes can be used to collect serum?

marbled red/gray, red-stopper tubes, and/or gold top tubes

25

How would one collect plasma?

Plasma is obtained from blood that has been mixed with an anticoagulant in the collection tube and is therefore not clotted. This tube is then centrifuged to yield plasma.

26

What three types of proteins are contained in plasma?

Albumin, globulin, and fibrinogen

27

What is the main difference between plasma and serum?

Plasma retains fibrinogen

28

What is similar between plasma and serum?

They both contain albumin and globulin

29

What are the four steps involved in obtaining a good quality specimen for diagnostic testing?

1. preparation of the patient;2. collection;3. processing;4. storing and transport

30

What is the most common type of error when comparing the preanalytical phase to the analytical phase?

Specimen collection, preparation, and submission