All of the following features are essential to a mobile radiographic unit EXCEPT
a. expandable 6-foot exposure cord.
b. automatic exposure control with single field.
c. dead-man type exposure switch.
d. clear display of exposure factors.
b. automatic exposure control with single field.
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Which of the following instructions from one OEC Technician to another describes the appropriate application of a cervical spine immobilization collar?
a. "Carefully flex his head forward a little so I can pass the collar underneath his neck." b. "Let's log roll the patient to one side so I can apply a cervical collar." c. "Keep his head in neutral position while I apply a cervical collar." d. "I need you to extend the patient's chin backward a little so I can fit the collar under his chin."
Which of following is an expected finding in myelodysplastic syndromes?
a. Ringed sideroblasts in the bone marrow and siderocytes in the blood b. Thrombocytosis and leukocytosis c. Increased number of morphologically normal red cells d. Dysmyelopoiesis but normal red cell precursors in the bone marrow
After a severe burn, a patient may require a(n) ________, in which skin is removed from an unaffected area of his body and moved to the burned area
A) donor site B) antibacterial patch C) heterograft D) autograft
In the developing solution, which chemical blackens the exposed silver halide crystals?
a. Sodium sulfite b. Sodium carbonate c. Hydroquinone d. Potassium bromide