While performing the Heimlich maneuver manual thrusts should be administered as ____ thrusts; or alternatively as ____ thrusts for obese or pregnant patients.

A patient appears to have a head injury after falling from a ladder. He is unresponsive and breathing at a rate of 4 times per minute. You should:

A) apply a nasal cannula. B) initiate BVM ventilations. C) apply a nonrebreather mask. D) withhold oxygen until a higher level of care arrives.

Ringed sideroblasts are a reflection of iron-laden:

a. Mitochondria b. Golgi complex c. Ribosomes d. Rough endoplasmic reticulum