Standard Normal Values for Nursing Exams

normal valuesNo exam for staff nurses is complete without at least one question from normal values. Most of us will be knowing the same too. But what happen’s finally?  Because of lack of revision in last minute, we will find it difficult to answer a simple question (Most often confused). What can we do to avoid this? The solution is repeated revision. In this article, we are portraying major investigations which clinical nurses see in daily practice and their normal values.

Normal Values for Registered Nurse Exams

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COMPLETE BLOOD COUNT

Name Value Unit
Red Blood Cells – RBC Males – 4.5 to 5.5  Females – 4.0 to 4.9 X 105/ml
White Blood Cells – WBC 4500 – 10000 Cells/mcL
Platelets 1 lac – 4.5 lac Cells/mcL
Hemoglobin (Hb) Males – 13.5 – 16.5

Females – 12.0 – 15.0

g/dL
Hematocrit (Hct) Males – 41 – 50%

Females – 36 – 44%

Mean Corpuscular Volume 80 – 100 fL

 

DIFFERENTIAL COUNT

Neutrophils 54—62%
Eosinophils 1—3%
Basophils 0—0.75%
Lymphocytes 25—33%
Monocytes 3—7%

SERUM ELECTROLYTES

Name Value Unit
Sodium – Na+ 135 – 145 mEq/L
Pottassium – K+ 3.5 – 5.5 mEq/L
Chloride – Cl- 96 – 105 mEq/L
Calcium – Ca2+ 8.5 – 10.9 mEq/L
Calcium, ionized 2.24 – 2.46 mEq/L
Magnesium – Mg2+ 1.5 – 2.5 mEq/L
Phosphorus 2.5 – 4.5 mEq/L

 

URINE ANALYSIS

Name Value Unit
Volume 1000 – 2000

30

mL/day

mL/hour

Specific Gravity 1.010 – 1.020
pH 4.5 – 8
Casts 1-2 Per high power field
Glucose None
Protein None
Uric Acid Females – 3.5 – 7.2

Males – 2.6 – 6.0

Mg/dL

CHEMISTRY VALUES

 

Name Value Unit
Random Glucose Adults – 70 – 110 Mg/dL
Blood Urea Nitrogen – BUN Adults – 7 – 18

Child – 5- 20

Infants – 5- 15

Mg/dL
Serum Creatinine 0.6 – 1.35 Mg/dL
Creatinine Phosphokinase – CPK 21 – 198 Units/L
Creatinine Clearance Females – 85 – 132

Males – 90 – 138

mL/min
Albumin 3.4 – 5.0 g/dL
Bilirubin <1.0 Mg/dL
Uric Acid 3.5 – 7.5 Mg/dL

 

COAGULATION STUDIES

Name Value Unit
Prothrombin time – PT 11 – 14 Seconds
Partial Thromboplastin Time – PTT 25 – 35 Seconds
International Normalized Ratio – INR 0.8 – 1.2
Activated Partial Thromboplastin Time (aPTT) 1.5 – 2.5
Fibrinogen 203 – 377 Mg/dL
Bleeding Time 1 – 6 mins

LIPOPROTEINS AND TRIGLYCERIDES

Name Value Unit
Total Cholestrol Ideal – < 200

Borderline – 200 – 240

High – Above 240

Mg/dL
Low Density Lipoprotein – LDL <70 Mg/dL
High Density Lipoprotein – HDL <60 Mg/dL
Triglycerides Normal – <50

Borderline high – 150 – 199

High – 200 – 199

Very High – Above 500

Mg/dL
SGOT (AST) <35 IU/L
SGPT (ALT) <35 IU/L

CARDIAC MARKERS

Name Value Unit
Troponin (CTN – 1 or CTN – T) Normal I : 0.03

Critical level I : Above 1.5

Critical Level T : 0.2

Ng/L
C-reactive protein Below 0.8 Mg/dL
CD40 Ligand 1.51 – 5.35 Mg/L
Creatinine Kinase (CK – MB) 0-3 Mcg/L

ARTERIAL BLOOD GAS

Name Value Unit
pH 7.35 – 7.45
Partial pressure of CO2 (PCo2) 35 – 45 mmHg

 

Partial pressure of O2 (pO2) 80 – 100 mmHg
Bicarbonate (HCO3) 22 – 26 mEq/L
Base Excess (BE) -2 – +2 mEq/L
Oxygen Saturation (SaO2) 95 – 100%

THYROID FUNCTION STUDIES

Name Value Unit
Thyroid Stimulating Hormone – TSH Adults – 0.2 – 5.4

Neonate – 3 – 20

mU/L
Thyroxine

(Total T4)

Adult – 5.4 – 11.5

Child – 6.4 – 13.3

Mcg/dL
Free Thyroxine (Total T4 F4) Adult – 0.7 – 2.0 Ng/dL
Thyroid Binding Globulin (TBG) Male – 15 – 30

Female –  11.5 – 32.2

Pregnancy

1st Trimester – 19.8 – 64.7

2nd Trimester – 41.4 – 63.9

3rd Timester – 31.0 – 73.6

Mcg/dL
Triiodothyroxine (Total T3) 75-200 Ng/dL
Free Triiodothyroxine (FT3) 260 – 480 Pg/dL
Thyroglobulin (Tg) Antibody 5-25 Ng/ML

TUMOR MARKERS

Name Value Unit
CA 19 – 9 Tumor Markers <37 U/mL
CA 27.29 Above 38 Uml
CA 15.3 Above 22 Uml
CA 125 0 – 35 Uml
Carcinoembryonic Antigen (CEA) Above 5 Ng/mL

THERAPEUTIC SERUM DRUG LEVELS

Name Value Unit
Carbamazepine 4-10 Mcg/mL
Digoxin 0.8 – 2.0 Ng/mL
Lithium 0.8 – 1.5 mEq/L
Phenobarbital 15 – 40 Mcg/mL
Theophylline 10 – 20 Mcg/mL
Valproic Acid 50 – 100 Mcg/mL

CSF NORMAL VALUES

Name

Value

Unit

Pressure 70 – 180 Mm H2O
Appearance Colourless, odourless
Total Protein 15 – 60 Mg/100mL
Gamma Globulin 3 to 12%  of total protein
Glucose 50 – 80 Mg/100mL
Cell Count 0 – 5 WBC’s and No RBC’s
Chloride 110 – 125 mEq/L

So now you are aware of the common laboratory values. Now we have got one more information for you. What do the abnormal values of above said investigations mean? See the two images given below to find out the answer

Clinical Correlation

IMAGE ONE

normal values laboratory values one

IMAGE TWO

normal values laboratory values two

Image Source – Click Here

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