In which of the following conditions would a ventilation scan be normal but a perfusion scan reveal areas of absent blood flow?

A. lung cancer
B. pulmonary embolism
C. pneumonia
D. emphysema


Ans: B. pulmonary embolism

Health Professions

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Three known conditions that can lead to firefighter fatalities are flashover, rollover, and:

A) backdraft. B) room contents. C) arson fire behavior. D) weather.

Health Professions

An EMT has accurately checked the skin color of a dark-skinned patient. How would this finding be best documented on a patient care report?

A) "Warm skin noted on the upper arm." B) "Forehead and face show pink skin color." C) "Pale color noted to the conjunctiva." D) "Thoracic and abdominal skin normal in color."

Health Professions

You are transporting a child with a small laceration to his leg, sustained after cutting himself of a piece of broken glass. During transport, you observe a pulse oximeter reading of 87% on the frantic, crying, and actively moving child. The child is alert and oriented with a normal pulse and respiratory rate with pink skin that is warm to touch. You should consider:

A) Starting positive pressure ventilation with supplemental oxygen B) Attempting to calm the child and obtain another SpO2 reading C) Applying high-concentration oxygen via a nonrebreather mask D) Checking the laceration for uncontrolled bleeding

Health Professions

The pituitary gland is located in the:

A) heart. B) hypothalamus. C) abdomen. D) midbrain.

Health Professions