1.2.6 Blood Collection and Specimen Consideration (Preanalytical Variables)

Question 1

Age

a. Uncontrollable factors
b. Controllable factors

Answer 1

a

Question 2

Gender

a. Uncontrollable factors
b. Controllable factors

Answer 2

a

Question 3

Smoking

a. Uncontrollable factors
b. Controllable factors

Answer 3

b

Question 4

Underlying condition

a. Uncontrollable factors
b. Controllable factors

Answer 4

a

Question 5

Diurnal Variation (Increased):

Cortisol

a. AM
b. PM

Answer 5

a

Question 6

Diurnal Variation (Increased):

Iron

a. AM
b. PM

Answer 6

a

Question 7

What is the recommended timing of collection for cortisol?

Answer 7

8 AM and 4 PM

Detects cushing syndrome (No changes in the afternoon)

Question 8

Iron is 30% lower in the __________

Answer 8

Afternoon

Question 9

Diurnal Variation (Increased):

Growth hormone

a. AM
b. PM

Answer 9

b

Question 10

Diurnal Variation (Increased):

ACTH

a. AM
b. PM

Answer 10

a

Question 11

Diurnal Variation (Increased):

PTH

a. AM
b. PM

Answer 11

b

Question 12

Diurnal Variation (Increased):

Aldosterone

a. AM
b. PM

Answer 12

a

Question 13

Diurnal Variation (Increased):

ACP

a. AM
b. PM

Answer 13

b

Question 14

Diurnal Variation (Increased):

TSH

a. AM
b. PM

Answer 14

b

Question 15

Posture (Increase)

Alb

a. Standing
b. Supine to upright

Answer 15

a and b

Question 16

Posture (Increase)

Cholesterol

a. Standing
b. Supine to upright

Answer 16

a

Question 17

Posture (Increase)

Protein and bound substances

a. Standing
b. Supine to upright

Answer 17

b

Question 18

Posture (Increase)

Calcium

a. Standing
b. Supine to upright

Answer 18

a

Question 19

Posture (Increase)

Renin

a. Standing
b. Supine to upright

Answer 19

a

Question 20

Posture (Increase)

Aldosterone

a. Standing
b. Supine to upright

Answer 20

a

Question 21

Activity (Increased)

TP

a. Ambulatory
b. Exercise

Answer 21

a

Question 22

Activity (Increased)

Lactate

a. Ambulatory
b. Exercise

Answer 22

b

Question 23

Activity (Increased)

CK

a. Ambulatory
b. Exercise

Answer 23

a and b

Question 24

Activity (Increased)

Creatinine

a. Ambulatory
b. Exercise

Answer 24

b

Question 25

Activity (Increased) LD, AST, Aldosterone a. Ambulatory b. Exercise

Answer 25

b

Question 26

Catecholamines (Ephinephrine, Nonephinephrin), Cortisol, ACTH, Aldosterone, Prolactine is increased in what factor?

Answer 26

Stress

Question 27

Diet: Fasting Plasma glucose a. REQUIRE fasting b. BASAL fasting

Answer 27

a

Question 28

Diet: OGTT (Oral glucose tolerance test) a. REQUIRE fasting b. BASAL fasting

Answer 28

a

Question 29

Diet: Triglyceride, Glucose a. REQUIRE fasting b. BASAL fasting

Answer 29

a and b

Question 30

Diet: Lipid profile a. REQUIRE fasting b. BASAL fasting

Answer 30

a

Question 31

Diet: Insulin a. REQUIRE fasting b. BASAL fasting

Answer 31

a

Question 32

Diet: Cholesterol a. REQUIRE fasting b. BASAL fasting

Answer 32

b

Question 33

Diet: Electrolyte a. REQUIRE fasting b. BASAL fasting

Answer 33

b

Question 34

Cholesterol is Not required for fasting T or F

Answer 34

T Required BASAL fast

Question 35

Diet: Gastrin a. REQUIRE fasting b. BASAL fasting

Answer 35

a

Question 36

Causes Increase in CO, NH3, and BUN (specifically in Urease method - False increase)

Answer 36

Smoking

Question 37

IV contamination: Glucose a. False increase b. False decrease

Answer 37

a

Question 38

IV contamination: Dilutional effect (BUN - hydration) a. False increase b. False decrease

Answer 38

b

Question 39

IV contamination: Electrolytes and drug a. False increase b. False decrease

Answer 39

a

Question 40

Hemoconcentration causes False ____________ due to: - Potassium - Lactate - Protein and protein-bound substance

Answer 40

Increase

Question 41

Most greatly affected when it comes to Hemolysis (False increase) Intracellular ions: Potassium, Magnesium, Phosphate Which among the three is the most abundant Cation?

Answer 41

Potassium

Question 42

Most greatly affected when it comes to Hemolysis (False increase) Intracellular ions: Potassium, Magnesium, Phosphate, iron Which among the three is the most abundant Anion?

Answer 42

Phosphate (PO4)

Question 43

Most greatly affected when it comes to Hemolysis (False increase) Enzymes: LD, ACP, ALP, AST, ALT, ChE T or F

Answer 43

T

Question 44

Slight hemolysis has an significant affect on CK T or F

Answer 44

F Not significant

Question 45

Handling: ABG, Ammonia, Lactate, ACTH a. Ice/Chilling b. Anaerobic c. X light

Answer 45

a

Question 46

Handling: ABG, ammonia, ACP, ionized Calcium a. Ice/Chilling b. Anaerobic c. X light

Answer 46

b

Question 47

Handling: Bilirubin, porpyrin, Carotene, Vit A and B12 a. Ice/Chilling b. Anaerobic c. X light

Answer 47

c