Lab med #'s to know

normal RBC

5

(5-15-45 rule)

normal MCV range

75-100

MCV < 75

microcytic

MCV > 100

macrocytic

normal MCH

25-35 (27-32)

normal MCHC

30-35

normal RDW

11.5-14.5

normal Hb

15

(5-15-45 rule)

normal reticulocyte range

25-75,000 (0.5-2%)

HCT normal level

45

(5-15-45 rule)

WBC normal range

5,000 - 10,000

WBC count <5000

leukopenia

WBC count > 10,000

leukocytosis

Neutrophil range

2,500-8000 (highest) (55-77%)

What does ANC <1000 mean? <500?

worsening infection

severe infection

lymphocytes range

1000-4000 (20-40% - second highest)

lymphocyte < 1000

lymphopenia

lymphocyte > 4000

lymphocytosis

CD4 count <200 indicates?

HIV infection

monocytes range

100-700 (2-8%)

eosinophils range

50-500 (1-4%)

basophils range

25-100 (least) (0.5-1%)

platelets range

150,000 - 400,000

normal PT time

11-12.5 sec

therapeutic anticoagulation is ___ times the normal for PT

1.5-2 times

therapeutic INR range

2.0-3.0

therapeutic INR range for mechanical prosthetic valve

2.5-3.5

therapeutic INR range for pts w/ thrombosis & antiphospholipid syn

2.0-3.0

therapeutic INR range for recurrent MI/DVT

2.0-2.5

normal PTT time

25-35 sec

therapeutic anticoagulation is ___ times the normal for PTT

1.5-2.5 the normal

therapeutic range of Anti Xa (better measurement of heparin)

0.6 to 1 unit/ml

normal fibrin split product #

<10

(increases w DIC)

normal HbA1c

< 5.7`

prediabetic

5.7 - 6.4

___ or higher on 2 sep occasions = diabetes

6.5

not well controlled diabetes

>8

how long does it take for HbA1c to decrease after tx

4 weeks

lecture 4 no numbers to know he said

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urine normal pH

4.6-8.0

24-hour urine protein is used to diagnose nephrotic syndrome. Greater than _____ grams of protein per 24 hours is significant for nephrotic syndrome

> 3000 mg/24hrs

normal specific gravity of urine

1.005-1.030

On a urine culture, a UTI is greater than _____ colonies

100,000

Normal sodium range?

critical value?

135-145

<120 and >160

normal potassium range?

critical value?

3.5-5.5

< 2.5 & > 7.5

normal CO2 range?

critical value?

23-30

<6

normal Chloride range?

critical value?

98-106

<80 & >115

Normal creatinine range

0.5-1.2

normal BUN range

10-20

normal calcium range

critical value?

9.0-10.5

<6.0 and >13

normal total bilirubin

0.3-1.9

normal direct bilirubin

0-0.3

AST normal range

10-34

ALK-PHOS normal range

30-110

GGT normal range

8-38

incubation period of hep A

2-6 weeks

incubation period of hep B

6 weeks - 6 months

incubation period for hep c

6-7 weeks

Negative AMA?

Weak positive AMA?

Strong positive AMA?

0.0 - 0.9

1.0-1.3

> 1.3

normal ADH

1.5

What is the normal opening pressure on a lumbar puncture in young children, under the age of 8?

10-100

What is the normal opening pressure on a lumbar puncture in people > 8 y/o?

60-200

Intracranial hypotension is defined as an opening pressure of less than ______

< 60

Opening pressures above ____ are diagnostic for intracranial hypertension

> 250

Normal adult range of protein in CSF

18-58

how do you correct if protein CSF is falsely elevated by presence of RBC in tap?

subtract 1mg/dL of protein for every 1000 RBC

Glucose less than ___ = abnormal ratio in CSF

0.4

(** bacterial infections can lower glucose levels, and remain the same in viral infections)

NORMAL GLUCOSE DOES NOT R/O INFECTION

normal total bilirubin

0.3-1.9