Complete blood

Red blood cells (RBC) 4.0-

Anemia; RBC <

Caused by protracted

count (CBC)

5.5 million/mL; white blood cells (WBC) 4500-11,000/mL; hemoglobin (Hg) 12-18 g/dL; hematocrit (Hct) 37-54%; reticulocyte count 0.5-2.5% of total RBCs; platelets 150,000-400,000/mL

4.0; Hct < 35%; Hg < 12 g/dL. Bleeding tendencies due to platelets <150,000/mL



50-180 units/dL


Elevated levels indicate patient is practicing vomiting behaviors; increases within 2 hours of vomiting and remains elevated for approximately a week


3.5-5.0 g/dL

Hypoalbuminemia; albumin < 3.5 grams/dL

Caused by protracted undernutrition

Other Tests: Other laboratory tests include arterial blood gases (metabolic alkalosis);

blood urea nitrogen (elevated); cholesterol (elevated); luteinizing hormone (decreased);

testosterone (decreased); thyroxine (mildly decreased); electrocardiogram; chest x-ray.

164 Bulimia Nervosa

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