Final: Lab Values Flashcards
RBCs
Male: 4.5-5.5x 106uL
Female 4.0.-4.9 x 106uL
(An adult human body has approximately 4.5-5.5L of blood - roughly males amt)
Mean corpuscular hemoglobin (MCH) mass of RBC
27-32 pg
Mean corpuscular hemoglobin concentration (MCHC)- color due to concentration of HgB
32-36g/dL *could be seen as a percent (32-36%)
Mean corpuscular volume (MCV)-size of RBC
80-100 fL
MCV sounds like MVC, going 80-100mph
Hemoglobin
Males: 13-18 g/dL
Females: 12-16 g/dL
When you think of hemoglobin, think of oxygen as hemoglobin carries and transfers oxygen.
RR = 12-18 breaths per minute
normal range for hemoglobin is 12-18 g/dL.
Hematocrit
Male: 45-52%
Female: 37-48%
When you think of hematocrit, think of hematocrisis and a midlife crisis which typically occurs between 37-52 years old.
WBCs
Males/females 4.1-10.9 x103 mm3
Wanna Buy a Car for $4,000-$11,000.
remember the normal range for WBCs is about 4,000-11,000/mcL.
WBC differential
Neutrophils
Lymphocytes
Monocytes/macrophages
Eosinophils
Basophils
50-70%
20-50%
2-12%
0-7%
0-2%
Platelets
150,000-400,000 L (150-400x103 uL)
Platelets -> plate
Fine China plate sets may cost anywhere from $150-400 on average
Sodium (NA)
135-145 mEq/L
Potassium (K)
3.5-5.0 mEq/L
Calcium (Ca)
(gallon of milk)
8.5-10.5 mg/dL
A gallon of milk weighs about 8.5 pounds.
Then think of 2% milk to help you remember to add 2 to the 8.5.
Magnesium (Mg)
(smallest)
1.5-2.5 mEq/L
Chloride (Cl)
(hot tub)
95-105 mEq/L
When you think of chloride, think of chlorine in a hot tub.
The average temperature of a hot tub is 95-105 degrees Fahrenheit.
Phosphate (PO4)
(relationship to calcium)
2.5-4.5 mg/dL
Calcium and phosphate have inverse relationship in the body
Calcium’s low value is 8.5
Take away the .5’s and focus on the 8 and it will help remember that phosphate’s ranges are 2 x 4
Glucose (fasting)
75-110 mg/dL (may see 120) *70-90 for fasting
Creatine Kinase (CK)
20-200 U/L *female 20-180
Creatine kinase MG (CK-MB)
<0.4-0.6
Troponin I serum
<0.1 ng/mL
Brain Natriuretic peptide (BNP)
<100pg/mL
NT-proBNP
<400pg/mL (values increase with age higher in women than men)
International normalized ratio (INR)
0.8-1.2
You can use the letter “I” in INR to remember the number 1 (values around 1)
Partial thromboplastin time (PTT) *aPTT is more sensitive version of PTT
21-35 secs
You can use the first “T” to remember “Ten” and the second “T” to remember “Twenty/Thirty”
Prothrombin time (PT)
10-16 sec, 11-13sec
You can use the “T” in PT to remember “Ten”
Cholesterol-total
<200 mg/dL
High-density lipoprotein (HDL)
Male >40 mg/dL
Female> 50 mg/dL
Low-density lipoprotein (LDL)
<100mg/dL
Triglycerides
<150mg/dL
Creatinine
0.6-1.2 mg/dL
BUN
6-20 mg/dL
Albumin
3.5-5.0 g/dL
Bilirubin
0.2-1.2 mg/dL
Alanine transaminase (ALT)
10-40 U/L
Aspartate aminotransferace (AST)
10-30 U/L
Amylase
30-122 U/L
Ammonia
15-60 mcg/dL
TSH
0.45-4.5 mU/L
Free thyroxine (FT4)
5.4-11.5 ug/dL or 57-148 mmol/L
pH
7.35-7.45
HCO3
(Carbonation & soda)
22-26 mEq/L or 24-28 mEq/L
When you think of bicarbonate, think of carbonation and soda.
Soda is usually sold in a 12 pack.
However, it’s bicarbonate so we need to multiply the 12 by 2 (BI = 2).
This gives us 24, which will help us remember the normal range of 23-29 mEq/L.
PaCO2
35-45mm Hg
matches pH values
Osmolality
280-310 mOsm/kg
Specific gravity
1.005-1.030 (general see 1.010-1.025)
GFR
90-120 mL per minute
UA
Color: yellow
Appearance: yellow-slight hazy
Glucose, ketones, protein, bilirubin: negative
Nitrate for bacteria: negative
WBCs & RBCs: negative
Spec grav: Normal 1.010-1.030 (water is 1.000)
pH (acidic) 4.6-8.0
