Which of the following flow-controlling valves operates by using the principles of electromag-netism?
a. Poppet c. Proportional sole-noid
b. Stepper motor d. Microproces-sor-operated
ANS: C
Proportional solenoid valves operate on a basic principle of physics concerning electricity and magnetism.
Health Professions
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Why would a bone marrow aspirate be needed as a specimen for cytogenetic analysis in a patient with a lymphoma?
a. Bone marrow aspirate is an optimal source of rapidly dividing cells. b. Bone marrow cells have good reactivity to colchicine. c. It would indicate possible metastasis of the lymphoma to that of other hematopoietic organs. d. Lymphoma cells are always present in the bone marrow if the patient has minimal residual disease.
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What does CO divided by HR equal?
a. SVR c. SV b. SVI d. CI
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