What component of the dental x-ray machine best limits the size of the x-ray beam to the approximate size of the image receptor?
a. A pointed cone
b. An open round cylinder
c. A rectangular PID
d. A slit collimator
c. A rectangular position indicating device (PID) limits the size of the x-ray beam that strikes the patient to the actual size of the image receptor.
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When performing a 3-lead ECG, how would you place the electrodes?
A) Right anterior chest, left anterior chest, right lower chest B) Right anterior chest, right lower chest, left lower chest C) Right anterior chest, mid chest over heart, left lower chest D) Right anterior chest, left anterior chest, left lower chest
You are assessing a female patient who informs you that she has been pregnant four times before but only delivered once. Which one of the following shows how you should document that information on the prehospital care report?
A) Para IV; Gravida I B) Gravida III; Para I C) Para III; Gravida I D) Gravida IV; Para I
You are called for an elderly woman who has slipped on the ice. On arrival, you find her supine on an icy sidewalk and responsive to painful stimuli with decorticate posturing (flexion). She has blood coming from a laceration on the back of her head and is breathing agonally at 4 times a minute. What should you do immediately?
A) Start positive pressure ventilation B) Insert a nasal airway into the right nare C) Perform the manual jaw-thrust maneuver D) Remove the patient to the warm ambulance
Which of the following does not describe the spleen?
A. It removes aged RBCs from circulation. B. It is the largest lymphatic organ. C. It is filled with blood and macrophages. D. It filters blood. E. It decreases in size as a person ages.