Author Question: Density is directly proportional to: mA kVp mA and time time[br][br][b][color=#7BCCB5]Question ... (Read 107 times)

JGIBBSON · **on:** Jul 17, 2018

Density is directly proportional to:

mA
kVp
mA and time
time

Question 2

Which of the following projections would be necessary to diagnose a basilar skull fracture?

cross-table lateral skull
AP axial Townes
SMV
PA skull

mjbamaung · **Reply #1 on:** Jul 17, 2018

Answer to Question 1

mA and time

Rationale: Density is directly proportional to time and mA selected. If the mA is doubled, the quantity of radiation is doubled. mA and time or mAs has a direct effect on image density.

Answer to Question 2

cross-table lateral skull

Rationale: A patient with a possible basilar skull fracture will present as trauma and will be unable to assume non-trauma positioning. A basilar skull fracture will result in cerebrospinal fluid and or blood pooling in the body of the sphenoid or the sphenoid sinus cavity. A cross table lateral will produce an air fluid level in the sphenoid sinus.