What determines the quality of a digital image?
a. Gray scale
b. Spatial resolution
c. Combination of pixels
d. All of the above
d. The quality of a digital image depends on the number and size of the pixels, the spatial resolution, and the gray scale.
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A client needs to lose weight before surgery. He is on a calorie-restricted diet and an exercise regime. The client weighed in at 295 pounds; he has since lost 13 pounds, gained 5 pounds, and then lost 14 pounds in three weeks
Write a number statement representing this information. What will be an ideal response?
The recommended time to properly clean the facial, lingual, occlusal, and incisal surfaces of teeth is ___________
a. 30 to 45 seconds b. 1 to 2 minutes c. 2 to 3 minutes d. 5 minutes
A 43-year-old man is experiencing a severe nosebleed. His blood pressure is 190/110 mm Hg and his heart rate is 90 beats/min and bounding. Preferred treatment for this patient includes:
A. placing a rolled 4² × 4² dressing between his lower lip and gum. B. pinching the patient's nostrils and having him lean forward. C. packing both nostrils with gauze pads until the bleeding stops. D. having the patient pinch his own nostrils and then lie supine.
You are called for an unresponsive 29-year-old man. Bystanders report he has been drinking heavily all day. Assessment reveals the patient to be responsive only to painful stimuli. His breathing is shallow at a rate of four times per minute. How would you manage this patient?
(A) Nasal cannula at 2-4 LPM (B) Simple face mask at 4-6 LPM (C) Nonrebreather mask at 10-15 LPM (D) Bag-valve device with a reservoir at 10-15 LPM