Which of the following describes the primary beam?
beam that travels at great angles as it exits the collimators
beam as it emerges from the collimator and moves without deflection
is comprised of leakage and scatter radiation
contributes to most of the radiation dose to the patient
beam as it emerges from the collimator and moves without deflection
Rationale: The primary beam exits the collimator and directs towards the entrance surface of the patient without deflection.
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Which of the following drugs is an example of mast cell stabilizers?
A) montelukast (Singulair) B) zileuton (Zyflo) C) fluticasone (Flovent) D) cromolyn (Intal)
A common medical disorder that is characterized by spasmodic narrowing of the bronchi, causing wheezing, coughing, and shortness of breath, is ________.
Fill in the blank(s) with the appropriate word(s).