An AP axial cranial projection (Towne method) with accurate positioning demonstrates
1. equal distances from the posterior clinoid processes to the lateral borders of the foramen mag-num on each side.
2. the midsagittal plane perpendicular to the IR.
3. the dorsum sellae within the foramen magnum.
4. the posterior clinoids inferior to the foramen magnum.
a. 1, 2, and 3 only
b. 1 and 3 only
c. 2 and 4 only
d. 1, 2, 3, and 4
Answer is a. 1, 2, and 3 only
You might also like to view...
Which of the following statements regarding occupant load is MOST accurate?
A. It is provided by the inspector. B. It must be identified on drawings. C. It is determined before life safety and fire-protection features. D. It is subject to change at any point during the construction process.
Which statement regarding contusions is true?
A) The epidermis is open and actively bleeding B) Blood vessels in the subcutaneous layer have been broken C) Blood vessels in the dermal layer have ruptured D) Blood vessels in the epidermis have broken but the skin is intact
Which of the following are precipitating factors for retained secretions that commonly lead to atelectasis?
1. Asthma 2. General anesthesia 3. Gastric aspiration 4. Smoking history a. 1, 4 b. 2, 3 c. 2, 3, 4 d. 1, 2, 3, 4
Anaphylactic shock is
an acute allergic reaction. the result of aspirating a foreign object. best treated with the patient in a seated position. a chronic allergic reaction.