Which of the following is true of ineffective erythropoiesis?
a. Lymphopenia and anemia are present.
b. RBC production in bone marrow is increased.
c. Release of RBCs to the peripheral blood is normal.
d. RBC survival in circulation is less than 40 days.
ANS: B
RBC production in the bone marrow is increased in ineffective erythropoiesis (decreased M:E ratio). However, production is defective, and many of the red cells are destroyed before leaving the marrow. Thus release of RBCs to peripheral blood is decreased. Although survival of these RBCs in circulation may be slightly shortened from the normal of 120 days, it is not significant (the increased rate of production in the marrow could fully compensate for the slight shortening if the red cells were all released to circulation). Lymphopenia is not characteristic of these anemias.
You might also like to view...
Which of the following is NOT a possible source of cyanide poisoning?
A) Fume inhalation from burning plastic, synthetic carpeting, or silk B) Ingestion of apricot, pear, and cherry pits C) Long-term sodium nitroprusside therapy D) Improperly vented heating systems
Folate, which is produced by the bacteria from PABA, is converted into folic acid, an essential cofactor in amino acid synthesis.
Answer the following statement true (T) or false (F)
1. Nursing home
a. Provides nursing care and rehabilitation services to people with illnesses, injuries, or functional disabilities b. Provides 24-hour-care patients with the highest level of medical need c. Provides a facility where surgical medical procedures or skilled rehabilitation services are performed and patients return home the same day d. Provides service to patients who need 24-hour nursing supervision to ensure medical, psychological, or social needs are met
Which of the following starting doses is recommended for amitriptyline (Elavil) in the management of noctural bruxism?
a. 5 mg b. 10 mg c. 50 mg d. 1 g