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Flashcards in Labs Deck (68):
1

PT

11-15 seconds
Warfarin
1.5-2.0 x BL

2

PTT

25-35 seconds
Heparin
1.5-2.5 x BL

3

Albumin Indication

1. Assesses nutritional status
2. Evaluates chronic illness
3. Evaluates liver disease**

4

Albumin level

3.4 - 4.8 g/dl

5

Albumin Interpretation

1. Increased= dehydration
2. Decreased:
a. Malnutrition
b. Liver disease
c. Inflammation
d. Increased blood volume
e. Burns, Hemorrhage

6

Albumin RN Implication

1. Assess nutritional status
2. Monitor for edema
3. Assess tissue integrity & prevent skin breakdown
4. Encourage protein intake

7

Prealbumin Indication

1. Evaluate nutritional status
2. Monitor parenteral nutrition

8

Prealbumin Level

12 - 42 mg/dl

9

Prealbumin Interpretation

1. Increased in Alcoholism
a. Chronic renal failure
b. pt receiving steroids
2. Decreased in malnutrition
a. Tissue necrosis
b. Liver disease
c. Acute phase inflammatory response
d. Chronic illness

10

Prealbumin RN Implication

1. Assess nutritional status

11

Anytime plasma glucose level Indication

Screen for diabetes

12

Anytime plasma glucose Level

< 200 mg/dl

13

Anytime plasma glucose level Interpretation

1. Increased:
a. Diabetes
b. Acute stress reaction
c. Pancreatitis
d. Severe renal disease
2. Decreased:
a. Hypoglycemia
b. Excess insulin
c. Alcohol use
d. Liver disease

14

Anytime plasma glucose level RN Implication

1. Assess nutritional status
2. Encourage proper body wt
3. Monitor blood glucose

15

Fasting Plasma Glucose Level Implication

Screen for diabetes

16

Fasting Plasma Glucose Level

70 - 100 mg/dl

17

Fasting Plasma Glucose Level Indication

1. 100 - 126 mg/dl indicates prediabetes
2. > 126 mg/dl Indicates diabetes

18

Fasting Plasma Glucose Level RN Implication

1. Medicate as ordered
2. Encourage diet evaluation and education
3. Monitor for hypoglycemia

19

Oral Glucose Tolerance Test Indication

Screen for diabetes

20

Oral Glucose Tolerance Test Level

< 200 mg/dl

21

Oral Glucose Tolerance Test Interpretation

> 200 mg/dl = diabetes

22

Oral Glucose Tolerance Test RN Implication

Encourage activity and exercise

23

Hemoglobin A1c Indication

Assess long - term glucose control (2 - 3 months)

24

Hemoglobin A1c Level

< 6.0 % decreasing

25

Hemoglobin A1c Interpretation

Increased in poorly controlled or uncontrolled diabetes

26

Hemoglobin A1c RN Implication

1. Educate regarding good glycemic control delaysonset & slows progression of diabetic retinopathy, & neuropothy.

27

Liver Function Tests

1. ALT
2. AST
3. ALP
4. Billirubin

28

Liver Function Tests Indication

Assess liver function and damage

29

Liver Function Tests Interpretation

Increased in:
a. Hepatitis
b. Liver disease
c. Cancer
d. CHF

30

Liver Function Tests RN Implication

1. Encourage proper diet
2. Encourage vaccination as appropriate

31

Bilirubin Level

0.3 - 1 mg/dl

32

ALT Level

10 - 35 IU/L

33

AST Level

<35 IU/L

34

Thyroid Antibodies Indication

Assist in Dx of Grave's Disease

35

Thyroid Antibodies Interpretation

Increased in:
a. chronic thyroiditis
b. Grave's Disease
c. Pernicious anemia
d. Rheumatoid arthritis

36

Thyroid Hormones T3 and T4 Indication

1. Evaluate hypothyroidism or hyperthyroidism
2. Monitor response to therapy

37

T3 & T4 Levels

1. T3 = 60 - 171 ng/dl
2. T4 = 4 - 12.3 micrograms/dl

38

T3 & T4 Interpretation

1. Increased in:
a. hyperthyroidism
b. Thyrotoxicosis
c. Excessive intake of iodine
d. Hepatitis
2. Decreased in:
a. Hypothyroidism

39

T3 & T4 RN Implication

Monitor for hypo or hyperthyroidism

40

Thyroid Stimulating Hormone TSH Indication

1. Diagnosis of Hypothyroidism or Hyperthyroidism

41

TSH Level

0.4 - 6.0 microUnits/ml

42

TSH Interpretation

1. Increased in:
a. primary hypothyroidism
b. Thyroid hormone resistance
c. Thyroiditis
2. Decreased in:
a. Excessive thyroid hormone replacement
b. Grave's Disease
c. Primary hyperthyroidism
d. Secondary hypothyroidism

43

TSH RN Implication

Recognize cause of hypothyroidism by comparing TSH level with T4

44

Oral Glucose Tolerance Test Indication

Screen for diabetes

45

Oral Glucose Tolerance Test Level

< 200 mg/dl

46

Oral Glucose Tolerance Test Interpretation

> 200 mg/dl = diabetes

47

Oral Glucose Tolerance Test RN Implication

Encourage activity and exercise

48

Hemoglobin A1c Indication

Assess long - term glucose control (2 - 3 months)

49

Hemoglobin A1c Level

< 6.0 % decreasing

50

Hemoglobin A1c Interpretation

Increased in poorly controlled or uncontrolled diabetes

51

Hemoglobin A1c RN Implication

1. Educate regarding good glycemic control delaysonset & slows progression of diabetic retinopathy, & neuropothy.

52

Liver Function Tests

1. ALT
2. AST
3. ALP
4. Billirubin

53

Liver Function Tests Indication

Assess liver function and damage

54

Liver Function Tests Interpretation

Increased in:
a. Hepatitis
b. Liver disease
c. Cancer
d. CHF

55

Liver Function Tests RN Implication

1. Encourage proper diet
2. Encourage vaccination as appropriate

56

Bilirubin Level

0.3 - 1 mg/dl

57

ALT Level

10 - 35 IU/L

58

AST Level

<35 IU/L

59

Thyroid Antibodies Indication

Assist in Dx of Grave's Disease

60

Thyroid Antibodies Interpretation

Increased in:
a. chronic thyroiditis
b. Grave's Disease
c. Pernicious anemia
d. Rheumatoid arthritis

61

Thyroid Hormones T3 and T4 Indication

1. Evaluate hypothyroidism or hyperthyroidism
2. Monitor response to therapy

62

T3 & T4 Levels

1. T3 = 60 - 171 ng/dl
2. T4 = 4 - 12.3 micrograms/dl

63

T3 & T4 Interpretation

1. Increased in:
a. hyperthyroidism
b. Thyrotoxicosis
c. Excessive intake of iodine
d. Hepatitis
2. Decreased in:
a. Hypothyroidism

64

T3 & T4 RN Implication

Monitor for hypo or hyperthyroidism

65

Thyroid Stimulating Hormone TSH Indication

1. Diagnosis of Hypothyroidism or Hyperthyroidism

66

TSH Level

0.4 - 6.0 microUnits/ml

67

TSH Interpretation

1. Increased in:
a. primary hypothyroidism
b. Thyroid hormone resistance
c. Thyroiditis
2. Decreased in:
a. Excessive thyroid hormone replacement
b. Grave's Disease
c. Primary hyperthyroidism
d. Secondary hypothyroidism

68

TSH RN Implication

Recognize cause of hypothyroidism by comparing TSH level with T4