A 3-year-old female presents to her pediatrician due to severe, recurrent Staphylococcus aureus abscesses. She demonstrates an absence of pigment in her hair, skin, and eyes. Her infections are possibly due to
A) the inability of the white blood cells to adhere to the blood vessels.
B) a deficiency of killing enzymes in the white blood cells.
C) abnormal granules in the white blood cells.
D) a defect in the complement cascade.
A
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Which type of hypoxia results from an inability of tissue cells to utilize the oxygen delivered to them?
A. hypoxemic B. histotoxic C. anemic D. circulatory
Do not remove the safety pin on a portable fire extinguisher until:
A. ready to use the extinguisher. B. the fire appears to be dying out. C. ordered to by the commanding officer. D. you are 10 feet (3.04 meters) from the fire.
An EMT asks you how he can decrease the chances of being involved in a collision when driving with lights and siren at night. Your advice would be:
A) "It is safer to use your high beams with the lights and siren, so that oncoming cars can see you better." B) "If blinded by the lights of an oncoming car, look to the right side of the road and not at the car." C) "Flashing your high beams on and off when approaching another vehicle is a good way to alert him to your presence." D) "Keep all lights on your dashboard to the highest setting so that you can easily see the speedometer to monitor your speed."
Describe three sources of therapeutic radiation in the healthcare workplace
What will be an ideal response?