The cochlea completes approximately ____________________ turns from base to apex
Fill in the blank(s) with correct word
2-3/4
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When the average of two systolic blood pressures taken on two different occasions is 140 mm Hg or higher, this can lead to a diagnosis of:
A) hypertension. B) anemia. C) decreased cardiac output. D) hyperlipidemia.
You are caring for an 8-month-old boy who is unresponsive after choking on a piece of hard candy he managed to find. As you look into his mouth, you can see the candy in the back of his oropharynx. Your next action would be to:
A) provide five abdominal thrusts. B) attempt to retrieve and remove it. C) check the brachial pulse. D) perform a blind finger sweep.
A 49-year-old male has summoned EMS because of a problem with his tracheostomy tube. At the patient's side, you note the tracheostomy tube to be protruding abnormally from the stoma in his neck. Your first action in caring for this patient would be to:
A) gently attempt to reinsert the tracheostomy tube. B) quickly establish a baseline SpO2 level. C) establish how the tracheostomy tube became dislodged. D) evaluate the patient's airway and breathing.
The Bohr equation applies to ventilation–perfusion ratios that have which of the following characteristics?
A. having a ventilation–perfusion value of zero B. having perfusion in excess of ventilation C. having ventilation in excess of perfusion D. having a ventilation–perfusion value of ?