Labs!

Question 1

Alanine aminotransferase (ALT)

Answer 1

normal: 1-45 IU/L

used for liver function-more specific to liver than AST

Question 2

Ammonia

Answer 2

normal: 15-45 mcg/dL

used for liver function

Question 3

Amylase

Answer 3

10-130 IU/L

used to determine pancreas involvement

Question 4

Aspartate aminotransferase (AST)

Answer 4

7-42 IU/L

parallels changes in ALT in liver disease

Question 5

Bicarbonate

Answer 5

23-29 mmol/L

Question 6

Bilirubin

Answer 6

total: .3-1 mg/dL
direct:

Question 7

Baby bilirubin

Answer 7

critical if it gets > 15-20 mg/dL in term infants

Question 8

Blood Urea Nitrogen (BUN)

Answer 8

5-20 less useful measure of GFR than creatinine because BUN is also related to protein metabolism.

Question 9

C-Reactive protein (CRP)

Question 10

Ammonia

Answer 10

normal: 15-45 mcg/dL

used for liver function

Question 11

Amylase

Answer 11

10-130 IU/L

used to determine pancreas involvement

Question 12

Aspartate aminotransferase (AST)

Answer 12

7-42 IU/L

parallels changes in ALT in liver disease

Question 13

Cortrosyn stimulation test, 1-hour

Answer 13

used to diagnose adrenal insufficiency. cortrosyn is given IM and blood collected one hour later. normal response: serum cortisol increase >20 mcg/dL 60 min after cortrosyn given

Question 14

Bilirubin

Answer 14

total: .3-1 mg/dL
direct:

Question 15

Baby bilirubin

Answer 15

critical if it gets > 15-20 mg/dL in term infants

Question 16

Blood Urea Nitrogen (BUN)

Answer 16

5-20 less useful measure of GFR than creatinine because BUN is also related to protein metabolism.

Question 17

BUN/CR ratio

Answer 17

mean is 10 but can range from 6-20.

Question 18

C-Reactive protein (CRP)

Question 19

Metabolic Syndrome

Answer 19

waist circumference: M: >40 in (102 cm) W: >35 in (88 cm)
TG >/= 150 mg/dL
HDL: M: /= 130/85
Fasting Glucose: >/= 110 mg/dL

Question 20

Cholesterol

Answer 20

LDL: 50-190 normal
TG:

Question 21

Serum chloride

Answer 21

97-107 mEq/L

Question 22

Serum cortisol

Answer 22

8: 00 a.m.-5-23 mg/dL
4: 00 p.m.-3-15

Question 23

Cortrosyn stimulation test, 1-hour

Answer 23

used to diagnose adrenal insufficiency. cortrosyn is given IM and blood collected one hour later. normal response: serum cortisol increase >20 mcg/dL 60 min after cortrosyn given

Question 24

creatine kinase (CK)

Answer 24

25-145mU/mL

used in suspected MI or muscle disease. Heart, skeletal muscle, and brain have high levels

Question 25

serum creatinine (SCr)

Answer 25

M:

Question 26

D-Dimer

Question 27

glucose

Answer 27

fasting: 200 is abnormal

Question 28

Monospot

Answer 28

used for mono suspicion normal is negative

Question 29

myoglobin

Answer 29

30-90 is normal. elevated 6-12 hr after acute MI

Question 30

BNP-natriuretic peptide, Btype

Question 31

serum postassium

Answer 31

3.5-5

Question 32

Semen analysis

Answer 32

``` volume: 2-5 mL Sperm count: >20-40x10^6/mL Motility: >60% Forward migration Morphology: >60% collect after 48-72 hours abstinence, analyze in 1-2 hr ```

Question 33

Serum Sodium

Answer 33

136-145 mmol/L

Question 34

Sweat chloride

Answer 34

5-40 meq/L. Increased in CF

Question 35

TSH-Thyroid Stimulating Hormone

Answer 35

.4-4.8 | increased in hypothyroidism and decreased in hyperthyroid

Question 36

Free thyroxine (FT4)

Answer 36

.8-1.7 | increased in hyperthyroid

Question 37

Troponin

Question 38

Red Blood Cell count

Answer 38

Male: 4.73-5.49 x 10^6/uL Female: 4.15-4.87 x 10^6/uL

Question 39

Mean Cellular Volume (MCV)

Answer 39

78-98 um^3 useful in classifying type of anemia

Question 40

Hemoglobin (Hgb)

Answer 40

Male: 14.40-16.60 gm/deciliter Female: 12.2-14.7 gm/deciliter

Question 41

Hematocrit

Answer 41

Men: 40-54% Female: 37-47%

Question 42

White blood cells

Answer 42

4,500 - 11,000 x cells/mm^3

Question 43

Vitamin B12

Answer 43

200-800 pg/mL

Question 44

Prothrombin Time (PT)

Answer 44

11.5-13.5 seconds | measure of the extrinsic pathway of coagulation

Question 45

Partial Thromboplastin time (aPTT)

Answer 45

27-38 seconds | measures intrinsic coagulation pathway

Question 46

Reticulocyte Count

Answer 46

0.5-1.5%

Question 47

Albumin

Answer 47

3.5-5.5 g/dL

Question 48

Erythropoietin

Answer 48

4.0-18.5 mlU/mL

Question 49

Serum Folic Acid

Answer 49

2.5-20 ng/mL

Question 50

Glucose (2 hour postprandial)

Question 51

Hemoglobin A1C

Answer 51

4.7-8.5%

Question 52

Iron

Answer 52

60-160 ug/dL

Question 53

Blood pH

Answer 53

7.38-7.44

Question 54

Vitamin B12

Answer 54

200-800 pg/mL

Question 55

uric acid

Answer 55

M: 3.4-8 W: 2.4-6 increase associated with increased catabolism, nucleoprotein synthesis, or decreased renal clearing of uric acid (Thiazide diuretics, renal failure)

Question 56

Ferritin

Answer 56

Male: 12-300 ng/mL Female: 12-150 ng/mL