Ionization chambers work on the principle that when radiation interacts with the electrons in air, ____ are produced.
a. ion pairs
b. light scintillations
c. scatter photons
d. low energy x-ray photons
a. ion pairs
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What is the electrical axis of the patient's heart if lead I is predominantly negative and lead aVF is predominantly positive?
A. A normal axis (no deviation) B. Right axis deviation C. Extreme right axis deviation D. Left axis deviation
A subcutaneous injection typically employs a(n)
1/4-inch needle 5/8-inch needle 3/4-inch needle 1.5-inch needle
What are the two muscles that aid in plantar flexion? They are located in the posterior portion of the leg
a. soleus and posterior tibialis b. tibialis posterior and gastrocnemius c. soleus and gastrocnemius d. gastrocnemius and flexor digitorum longus
________ prevent healthcare workers from exposing themselves and others to infections.
What will be an ideal response?