The eardrum is also called the ________.
A. pinna
B. auditory canal
C. auricle
D. tympanic membrane
Answer: D
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) A patient has terminal lung cancer and a valid Do Not Resuscitate (DNR) order. His wife has called 911 because her husband's pulse oximeter reading fell below 85% and an alarm sounded. The patient is currently receiving home oxygen through a nasal cannula. Assessment reveals him to be alert and oriented and slightly tachypneic with no abnormal lung sounds. At this time, your next action would be to:
A) Start positive pressure ventilation B) Check the SpO2 using your pulse oximeter C) Administer oxygen through a new nasal cannula D) Place the patient on the stretcher for transport to the hospital
If the total hemoglobin content (Hb + HbO2) of a sample of blood is 20 g/dl and the oxyhemo-globin (HbO2) content is 15 g/dl, what is the HbO2 saturation?
a. 17% b. 50% c. 75% d. 83%
Glaucoma is classified as ________________________ and then further classified as primary or secondary
A. anterior chamber or posterior chamber B. open angle or closed angle
Which of the following statements is true about the use of an oral irrigator?
A) It is recommended to reduce ulcerations of the buccal mucosa. B) Do not use for a periodontal abscess. C) It can be used in place of flossing. D) AHA has established guidelines for patients requiring antibiotic prophylaxis.