Which of the following statements about leukemia is TRUE?
A) Leukemia is a disease of children and young adults, not older adults.
B) Leukemias are cancers of red blood cells.
C) A patient with leukemia may bleed excessively.
D) Common forms include Hodgkin's lymphoma.
Answer: C
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A mother brings her 3-year-old son into the aid room. She says he has a low grade fever and seems to be having slight difficulty breathing. Which of the statements by the mother would make you think the child may have croup?
a. "Last night, he had a barking-like cough." b. "There are times when he continually drools." c. "When I turn the air conditioner on, he gets more short of breath." d. "He has a rash on his chest."
Mean arterial blood pressure can be regulated by changing which of the following? 1. Capacity of the circulatory system 2. Effective volume of circulating blood 3. Tone of the capacitance vessels (veins)
a. 1 and 2 only b. 2 only c. 1, 2, and 3 d. 3 only