RTP Midterm Study Guide With
Complete Solution
What are the "GAMS" Concept for All Patients - ANSWER Gown the patient;
remove any artifacts; measure the patient; shield the patient
Non-emergency images should be taken at what point of a women's
menstrual cycle to ensure that a patient is not pregnant? - ANSWER First 10
days
T/F: Because of the radiological risks to embryos and fetuses, all female
patients of reproductive age, including teenagers, must be asked privately if
there is any chance that they could be pregnant - ANSWER True
Based on the research, is gonadal shielding indicated in taking x-rays? -
ANSWER No, it is not indicated unless the patient requests to have
shielding performed.
Source to Image Distance for APOM - ANSWER 40"
Patient measurement for APOM - ANSWER Film: anterior to posterior, from
the corner of the open mouth to the base of the occiput. Digital: AP
measurement through the mid cervical region (approximately C4)
Is there tube tilt in APOM? - ANSWER No
Image receptor size in APOM - ANSWER Smallest available (8x10 or 10x12
in portrait orientation)
Patient positioning for APOM - ANSWER Patient's mouth is fully open with
,his or her posterior skull touching the grid. Align the EOP with the inferior
margin of the upper teeth, so that the hard palate is parallel to the floor
Central ray position for APOM - ANSWER Center of the patient's mouth
Collimation for APOM - ANSWER To the tips of the nose and chin vertically,
and the mastoid processes horizontally
Marker placement for APOM - ANSWER Within the collimation field on the
grid, without superimposing any anatomy, usually below the ear
Breathing instructions for APOM - ANSWER Suspended respiration and
motion (Don't breathe, don't move)
Patient measurement for APLC - ANSWER Anterior to posterior through the
mid-cervical spine at approximately C4
SID for APLC - ANSWER 37"
Tube tilt for APLC - ANSWER 15 degrees cephalad
Image receptor size for APLC - ANSWER Smallest available (8x10 or 10x12
in portrait orientation)
Patient Positioning for APLC - ANSWER Patient's mouth closed; patient is
placed with his/her back to the grid and head in extension so base of the
skull and mandible are in line with each other. Spine centered to the midline
of the grid
Central ray position for APLC - ANSWER The middle of the cervical spine at
approximately C4
Collimation for APLC - ANSWER 10" vertically, and to the soft tissues of the
neck horizontally
, Marker placement for APLC - ANSWER Within Collimation field on the grid,
without superimposing any anatomy, usually below the ear
Breathing instructions for APLC - ANSWER Suspended respiration and
motion (don't breathe, don't move)
Patient measurement for Lateral Cervical Neutral (LCN) - ANSWER Laterally
through mid-cervical spine at approximately at C4
SID for LCN - ANSWER 72"
Tube tilt for LCN - ANSWER None
Image Receptor size for LCN - ANSWER Smallest available (8x10 or 10x12)
Patient positioning - ANSWER Patient's mouth is closed. The patient stands
90 degrees to the image receptor, looking straight ahead in a neutral
position, with one shoulder touching the image receptor holder.
Central Ray Position for LCN - ANSWER The middle of the cervical spine at
approximately C4 or the level of the thyroid cartilage
Collimation for LCN - ANSWER 8x10, ensuring that the eyes are not within
the collimation field
Marker placement for LCN - ANSWER Within the collimation field, without
superimposing any anatomy, usually below the mandible. The side fo the
patient that is touching the image receptor holder indicates the marker that
is used.
Breathing instructions for LCN - ANSWER Suspended full exhalation and
depression of the shoulders (breath all the way out, and drop your shoulders
toward the floor)
Complete Solution
What are the "GAMS" Concept for All Patients - ANSWER Gown the patient;
remove any artifacts; measure the patient; shield the patient
Non-emergency images should be taken at what point of a women's
menstrual cycle to ensure that a patient is not pregnant? - ANSWER First 10
days
T/F: Because of the radiological risks to embryos and fetuses, all female
patients of reproductive age, including teenagers, must be asked privately if
there is any chance that they could be pregnant - ANSWER True
Based on the research, is gonadal shielding indicated in taking x-rays? -
ANSWER No, it is not indicated unless the patient requests to have
shielding performed.
Source to Image Distance for APOM - ANSWER 40"
Patient measurement for APOM - ANSWER Film: anterior to posterior, from
the corner of the open mouth to the base of the occiput. Digital: AP
measurement through the mid cervical region (approximately C4)
Is there tube tilt in APOM? - ANSWER No
Image receptor size in APOM - ANSWER Smallest available (8x10 or 10x12
in portrait orientation)
Patient positioning for APOM - ANSWER Patient's mouth is fully open with
,his or her posterior skull touching the grid. Align the EOP with the inferior
margin of the upper teeth, so that the hard palate is parallel to the floor
Central ray position for APOM - ANSWER Center of the patient's mouth
Collimation for APOM - ANSWER To the tips of the nose and chin vertically,
and the mastoid processes horizontally
Marker placement for APOM - ANSWER Within the collimation field on the
grid, without superimposing any anatomy, usually below the ear
Breathing instructions for APOM - ANSWER Suspended respiration and
motion (Don't breathe, don't move)
Patient measurement for APLC - ANSWER Anterior to posterior through the
mid-cervical spine at approximately C4
SID for APLC - ANSWER 37"
Tube tilt for APLC - ANSWER 15 degrees cephalad
Image receptor size for APLC - ANSWER Smallest available (8x10 or 10x12
in portrait orientation)
Patient Positioning for APLC - ANSWER Patient's mouth closed; patient is
placed with his/her back to the grid and head in extension so base of the
skull and mandible are in line with each other. Spine centered to the midline
of the grid
Central ray position for APLC - ANSWER The middle of the cervical spine at
approximately C4
Collimation for APLC - ANSWER 10" vertically, and to the soft tissues of the
neck horizontally
, Marker placement for APLC - ANSWER Within Collimation field on the grid,
without superimposing any anatomy, usually below the ear
Breathing instructions for APLC - ANSWER Suspended respiration and
motion (don't breathe, don't move)
Patient measurement for Lateral Cervical Neutral (LCN) - ANSWER Laterally
through mid-cervical spine at approximately at C4
SID for LCN - ANSWER 72"
Tube tilt for LCN - ANSWER None
Image Receptor size for LCN - ANSWER Smallest available (8x10 or 10x12)
Patient positioning - ANSWER Patient's mouth is closed. The patient stands
90 degrees to the image receptor, looking straight ahead in a neutral
position, with one shoulder touching the image receptor holder.
Central Ray Position for LCN - ANSWER The middle of the cervical spine at
approximately C4 or the level of the thyroid cartilage
Collimation for LCN - ANSWER 8x10, ensuring that the eyes are not within
the collimation field
Marker placement for LCN - ANSWER Within the collimation field, without
superimposing any anatomy, usually below the mandible. The side fo the
patient that is touching the image receptor holder indicates the marker that
is used.
Breathing instructions for LCN - ANSWER Suspended full exhalation and
depression of the shoulders (breath all the way out, and drop your shoulders
toward the floor)
