When percussing, a dull tone is expected to be heard over: The dorsal surface of the hand is most often used for the assessment of: A patient in the emergency department has a concussion to the head. You suspect the patient may also have a retinal hemorrhage. You are using the ophthalmoscope to examine the retina of this patient. Which aperture of the ophthalmoscope is most appropriate for this patient? The use of secondary, tangential lighting is most helpful in the detection of: Tuning for...