A 51 yo woman is being evaluated for anemia. She has a long history of anemia dating back to high school. She was given red cell transfusions on two previous occasions, following the birth of her daughter 30 years ago and again following open heart surgery 4 months ago. She had been prescribed oral iron pills in the past but was unable to tolerate these because of GI side effects
Past history
- Hodgkin lymphoma, diagnosed 25 years ago and treated with chemotherapy and radiotherapy. She has been in remission since completing treatment.
- Valvular heart disease (possibly a complication of radiation treatments for lymphoma) necessitating replacement of the aortic and mitral valves with metal St Jude valves, and repair of the tricuspic valve, 4 months ago. Her anemia worsened following the surgery and she has received a total of 12 units of red cells since then. She has been treated with an anticoagulant (warfarin) since this procedure to prevent clot formation on the valves.
- Hypothyroidism, status post thyroidectomy for thyroid cancer (possibly also a complication of radiation for lymphoma) 7 years previously, treated
- Hypoparathyroidism, treated
- History of splenectomy, done as part of a staging evaluation for Hodgkin disease 25 years ago.
Medications
- Amiodarone
- Albuterol-ipratropium inhaler
- Simvastatin
- Alprazolam
- Aspirin
- Levothyroxine
- Calcitriol
- Esomeprazole
- Warfarin
Family history
Her mother had anemia of uncertain cause. No other family history of hematologic disease. Both parents had coronary artery disease.
Social History
Married, one daughter. Never smoked. Consumes alcohol rarely.
Review of systems
Has felt severely fatigued following heart surgery, with some improvement after red cell transfusion. Recent weight gain attributed to fluid retention caused by heart problems, treated with diuretics. No fever, chills. Had been amenorrheic since receiving chemotherapy for lymphoma, but had an episode of vaginal bleeding following heart surgery. Scheduled to see a gynecologist for further evaluation. Has noted occasional dark or black stools.
Physical examination
BP 99/64, pulse 93, temp 36.7, resp 18. Not icteric, no oral lesions. Jugular venous pressure appears increased. Metallic S1/S2, regular rhythm. Scattered lung wheezes. Abdomen obese with surgical scar in left upper quadrant. 1+ pitting edema of ankles.
Select tests that you think might be helpful from the test menu below.
- How many different potential causes for anemia can you identify in this case?
- Which do you think is the most important, and why?
TEST MENU
Blood Bank
ABO & Rh Typing ($46.40)
Antibody Screen ($89.10)
Direct Coombs ($36.30)
Body Fluids
Stool Occult Blood ($122.00)
Chemistry
Basic Chem ($174)
Bilirubin ($42)
LDH ($50)
Endocrine
TSH ($141)
Coagulation
Prothrombin time/INR ($33)
Hematology
CBC and differential ($65)
Reticulocyte count ($33.45)
Blood smear ($28.75)
Iron studies ($231.20)
Folate & B-12 ($249.00)
Haptoglobin ($106.00)
Hemoglobin electrophoresis ($199.35)
Serum erythropoietin level ($157.00)
Other tests
Chest X-ray ($220)
Upper GI Endoscopy ($3649.00)
Colonoscopy ($4557.00)
Echocardiogram ($2277.00)
Bone marrow aspirate & biopsy ($3679.00)