Iron overload in severe b-thalassemia (b-thalassemia major) patients is primarily a consequence of:
a. An increased rate of absorption of iron because of the severe anemia
b. A decreased need for iron because fewer RBCs are made
c. Accumulation of iron from massive RBC transfusion therapy
d. Decreased rate of use of iron because smaller RBCs are made
ANS: C
Patients with b-thalassemia major have a severe anemia; many of their clinical problems are related to this anemia. Giving the patient massive red cell transfusion therapy can ameliorate some of these clinical problems. Unfortunately, a serious consequence of this is the build-up of iron in the body from all the transfused RBCs because the body has no mechanism for excreting iron.
You might also like to view...
It is recommended that the Emergency Medical Responder use a
to splint an upper extremity injury. A. circumferential splint B. rigid bandage C. traction splint D. sling and swathe
A pharmacy is reimbursed by an insurance company for AWP + $4.75 per prescription. If the AWP for 90 capsules is $110.00, how much will the pharmacy be reimbursed for a prescription of 30 capsules?
$33.62 $36.66 $39.75 $41.41
Before ulcer surgery, a patient is prescribed glycopyrrolate 200 mcg IM. On hand is glycopyrrolate 0.2 mg per mL. How many milliliters contain the correct dose?
A. 0.2 mL B. 0.5 mL C. 1 mL D. 1.5 mL
After a clinical assessment of the client, a predriving assessment is completed. Essential predriv-ing skills that are evaluated include which of the following?
A. Cognitive and perceptual skills assessment B. On-the-road evaluation of the client's skills using adapted equipment C. The ability to handle keys, manage doors, mobility devices, and adjust seat belt D. Muscle strength, range of motion, and grip measurements