For a parietoacanthial sinus projection (Waters method), the
1. patient is positioned upright to demonstrate air-fluid levels within the maxillary sinuses.
2. MML is aligned perpendicular to the IR.
3. central ray is centered to the acanthion.
4. OML is at a 37-degree angle with the central ray.
a. 1 and 4 only
b. 2 and 3 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4
Question 2
A parietoacanthial sinus projection (Waters method) with accurate positioning demonstrates
1. an equal distance from the lateral orbital margin to the lateral cranial cortex on both sides.
2. the bony nasal septum in alignment with the long axis of the exposure field.
3. the petrous ridges demonstrated inferior to the maxillary sinuses.
4. the ethmoid sinus through the mouth cavity in an open-mouth position.
a. 1 and 2 only
b. 3 and 4 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4
In the communication technique of collaborating, the nurse sends the message that the nurse and pati
When using an interpreter, the nurse should pose questions directly to the patient, not the interpre
EHR systems enable providers to view patient records across organizations.
A pacemaker in a patient’s chest.
After multiple injections of a local anesthetic, the patient developed herpetic lesions.
How to get the derivative of x/(2-sqrt(x)) using delta method