The patients colon may be cleansed by one or any combination of the following:(3)
can be easily penetrated by x-rays
ex.air & cloth
cannot be penetrated easily by x-ray
ex. bone & metal
the rhythmic action of the muscular tissue of the alimentary tract
Involuntary motion is caused by the following:
- heart pulsation
Voluntary motion resulting from a lack of control is caused by the following:
- mental illness
What is the primary method of reducing involuntary motion or voluntary motion due to lack of control?
length of exposure time
less exposure time the better
designed to help with significantly varied tissue thickness and density within a body part
The simplest and most common of the compensating filter shapes
The distance from the anode focal spot inside the X-Ray tube to the IR
Source-to-image receptor distance(SID)
What are the most common filter materials
aluminum and high-density plastics
The distance between the focal spot of the radiography tube and skin of the patient
The following primary factors must be taken into account when the correct foundation technique is being established for each unit:
- Source-to-image receptor distance(SID)
- relative patient or part thickness
- CR/DR exposure indicators or other digital exposure value estimates
- IR or collimated field dimension
- electrical supply characteristics(phase, frequency)
The greater the SID, the _____ magnification and the _____ the spacial resolution.
restriction of the radiation field
What are the 2 reasons for collimation?
reduce the amount of exposure
reduce the amount of scatter radiation thus helping contrast resolution
All radiographs must include the patient and procedure information required by institutional policy. This information customarily includes:
- patients name or identification number
- right or left marker
- institution identity
Term applied to the science of the structure of the body
the study of the functions of the body's organs
The detailed study of the body of knowledge related to the bones of the body
What are the 4 fundamental body planes?
The 2 great cavities of the torso
Thoracic and abdominal cavity
What is in the thoracic cavity?
- pleural membranes
- heart and great vessels
What is in the abdominal cavity?
- major blood vessels
What is in the pelvic portion?
- urinary bladder
- parts of the reproductive system
9 Abdominal Regions:
4 major types of body habitus and their percentages:
More than 85% of the population either _______ or a ________ has a body habitus
sthenic or hyposthenic
How many bones are there in the body?
how many bones are there in the axial skeleton?
how many bones are there in that appendicular skeleton?
Axial skeleton: 80 bones
Appendicular skeleton: 126
Classification of bones:
Refers to forward or front part of body or forward part of an organ
Refers to the back part of the body organs
away from the head of the body
towards the head of the body
refers to nearer the feet or situated below
refers to nearer the head or situated above
Refers to middle area or main part of an organ
Refers to parts at or near the surface, edge, or outside of another body part
refers to part or parts on the opposite side of the body
refers to part or parts on the same side of the body
refers to the wall or lining of a body cavity
refers to the top or anterior surface of the foot or to the back or posterior surface of the hand
Refers to the Palm of the hand
Refers to the sole of the foot
Supine position with the head tilted downward
Supine position with the head higher than the feet
The recumbent position with the patient lying on the left anterior side (semiprone) with left leg extended and right knee and thigh partially flexed
Supine position with knees and hips flexed and thighs abducted and rotated externally supported by ankle or knee supports
Indicates that the patient is lying down and that the central rate is horizontal in parallel with the floor
Achieve by having a patient lean backwards while in the upright body position so that only the shoulders are in contact with the IR
Used to describe the body part as seen by the IR
Circular movement of a limb
Turning away from the regular standard or course