One of the main functions of the bones is to store nutrients such as calcium and:
A) Iron.
B) Phosphorus.
C) Estrogen.
D) Vitamin C.
B
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Cerebrospinal fluid is produced primary by the
a. Choroid plexus b. Cerebral aqueduct c. Ependymal cells d. Neural tissue
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.
Which of the following is the premier diagnostic feature of Ventricular Fibrillation?
A) Rate greater than 350 bpm B) P waves unrelated to QRS complexes C) More P waves than QRS complexes D) No measurable waves or complexes
Why is the use of applied PEEP generally not necessary for patients who require mechanical ventilation for respiratory failure caused by airflow obstruction?
A. because PEEP will have little affect on the oxygenation of these type patients B. because PEEP tends to overdistend obstructed regions of the lungs C. because PEEP will unnecessarily prolong the expiratory time D. because PEEP will significantly reduce the delivered tidal volume