The gantry is the part of the CT scanner that houses what 4 things?
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-Cooling system
-Data acquisition system (DAS)
-Detectors
-X-ray tube
- Most generators
Oral contrast Agent Administration
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, -Example of oral contrast agent protocol for CT examinations limited to the
abdomen is as follows:
>>300 mL of oral contrast agent 30 minutes before scan
>>150 mL of oral contrast agent immediately before scan
-For CT examinations of the entire abdomen and pelvis, to adequately
opacify the stomach, small bowel, and proximal large bowel is typically
required:
>>450 mL of oral contrast agent 60-90 minutes before scan
>>300 mL of oral contrast agent 30 minutes before scan
>>150 mL of oral contrast agent immediately before scan
(Going to be some kind of Barium substance)
(effervescent granules)
What are the three goals of obtaining a medical history?
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Patient safety
Correct selection of protocol
Providing useful info for useful interpretation of the exam
Platelet count
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Used to assess patient's clotting ability.
A CT number of 1000-3000 represents what?
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, dense bone
Sites commonly used for IV administration of radiopaque contrast agents include:
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>>Anterior recess of the elbow (antecubital space)
>>Radial aspect of the wrist
>>Anterior surface of the forearm
>>Posterior portion of the hand
Steps to putting in a IV
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1. Wash hands/put on gloves
2. Select site/appropriate angiocatheter
3. Tourniquet arm about 2 in proximal to the access site
4. clean the site using alcohol prep pad
5. Remove cap from the angiocatheter/insert the needle parallel to skin
6. Pull back till you see a "flash" of blood
7. Release the tourniquet
8. pull needle out of catheter
CT Numbers
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-Cooling system
-Data acquisition system (DAS)
-Detectors
-X-ray tube
- Most generators
Oral contrast Agent Administration
Give this one a try later!
, -Example of oral contrast agent protocol for CT examinations limited to the
abdomen is as follows:
>>300 mL of oral contrast agent 30 minutes before scan
>>150 mL of oral contrast agent immediately before scan
-For CT examinations of the entire abdomen and pelvis, to adequately
opacify the stomach, small bowel, and proximal large bowel is typically
required:
>>450 mL of oral contrast agent 60-90 minutes before scan
>>300 mL of oral contrast agent 30 minutes before scan
>>150 mL of oral contrast agent immediately before scan
(Going to be some kind of Barium substance)
(effervescent granules)
What are the three goals of obtaining a medical history?
Give this one a try later!
Patient safety
Correct selection of protocol
Providing useful info for useful interpretation of the exam
Platelet count
Give this one a try later!
Used to assess patient's clotting ability.
A CT number of 1000-3000 represents what?
Give this one a try later!
, dense bone
Sites commonly used for IV administration of radiopaque contrast agents include:
Give this one a try later!
>>Anterior recess of the elbow (antecubital space)
>>Radial aspect of the wrist
>>Anterior surface of the forearm
>>Posterior portion of the hand
Steps to putting in a IV
Give this one a try later!
1. Wash hands/put on gloves
2. Select site/appropriate angiocatheter
3. Tourniquet arm about 2 in proximal to the access site
4. clean the site using alcohol prep pad
5. Remove cap from the angiocatheter/insert the needle parallel to skin
6. Pull back till you see a "flash" of blood
7. Release the tourniquet
8. pull needle out of catheter
CT Numbers
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