Which condition, commonly called lazy eye, occurs when a child does not use one eye regularly and the eye becomes "lazy' and the brain tends to ignore what the lazy eye sees?
A. Astigmatism
B. Presbyopia
C. Iritis
D. Amblyopia
E. Strabismus
Answer: D
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A young boy complains of pain to his fingers after spending several hours outside riding a sled in cold winter temperatures. After ensuring he has no life-threatening conditions, you turn your attention to his hands and note that the fingers are cold to the touch. You suspect that he is suffering from a superficial freezing cold injury. Which sign or symptom would help confirm this suspicion?
A) Skin on the fingers that is soft and numb B) History of being exposed to cold temperatures C) Swelling and blisters noted to the fingers D) Firm skin that is cold and numb
_______________ is currently used to diagnose cavities. An electric current is passed through a tooth, and the tooth's resistance is measured
Fill in the blank(s) with correct word
With a PaO2 of 100 mm Hg at 1 atm of pressure, what amount of oxygen can physically dissolve in 1 dL of blood?
A. 3.0 mL B. 0.03 mL C. 0.003 mL D. 0.3 mL
What is the main obstacle of performing angioscopy?
a. light b. valves c. strictures d. clear visibility