Ultrasound frequencies are
a. inaudible.
b. not related to wavelength.
c. greater than 20 kHz.
d. both a and c
d. both a and c
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You are treating a 67-year-old male patient with chest pain and a history of prior heart attacks as well as diabetes and hypertension. The patient has taken three nitroglycerin tablets, which have decreased his pain from 7/10 to 4/10; however, the pain persists. Initially, his SpO2 was 91% on room air. Oxygen was applied by nasal cannula and now, on 3 lpm O2, his SpO2 is 97%. How would you address the oxygen administration, given that the patient still has chest pain
A) Increase the oxygen flow to 4 lpm B) Decrease the oxygen flow to 2 lpm C) Leave the oxygen flow unchanged D) Discontinue oxygen therapy
Which lobe of the brain interprets visual stimuli?
A. Frontal B. Parietal C. Temporal D. Occipital E. Midbrain
Which of the following individuals is most at risk for erythroblastosis fetalis?
A. The first Rh-negative fetus born to an Rh-positive mother B. The second Rh-positive fetus born to an Rh-negative mother C. An Rh-negative mother D. An Rh-positive mother E. An Rh-negative father
The most common intramuscular injection site is the ____.
A. gluteal B. dorsogluteal C. bicep D. tricep