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CT registry Exam Solved Correctly To Score A+
What dose descriptor is calculated with the following formula?
X = (2/3)(CTDI₁₀₀) periphery + (1/3) (CTDI₁₀₀) center
C. CTDIw A. DLP
B. CTDIvolume
C. CTDIw
D. MSAD
When performing an invasive CT examination, such as a RFA of the liver, a
partial thromboplastin time (PTT) is drawn. What does a partial thromboplastin
time test measure?
D. time for normal clot formation
plasma A. the time required to increase the platelet count by 10%
B.the time required to manufacture prothrombin
C. the time required to located a decrease in the platelet count by 10%
D.time for normal clot formation plasma
What kind of consent is obtained prior to a noninvasice CT procedure?
A. simple expressed
A. simple expressed
B. implied
C. written informed
D. informed
Which of the following methods must be utilized when placing an IV line in an
antecubital vein?
A. the technologist must wash his/her A. the technologist must wash his/her hands prior to starting an IV line
hands prior to starting an IV line B.the technologist should anesthetize the area using a topical agent
C. the technologist should release the tourniquet as the needle is being inserted
D.the technologist should make a minimum of 4 attempts in the arm before
giving up
1/15
, When administering IV contrast to a patient with a mastectomy, which vein should
be chosen?
B. the vein on the contralateral side A. the vein on the same side as the removed breast
B.the vein on the contralateral side
C. the dorsal pedal veins
D.mastectomy patients should never receive intravenous contrast
What instrument is used to measure radiation exposure?
A. Geiger counter
B. ionization chamber
B.ionization chamber
C. reference detector chamber
D.solid-state detector aperture
What method is used to lower the viscosity of contrast media before injecting?
B. heating the media to body A. heating the media to room temperature
temperature
B. heating the media to body temperature
C. mixing the media with a saline solution
D. viscosity of the media can never be altered
For the radiation workers in the United States, what is their dose limitation per year?
A. 20mSv
B. 50 mSv
B. 50 mSv
C. 75 mSv
D. 100mSv
A female patient arrives to the ER with severe right flank pain. The patient is 5'4"
weighing 100 lbs. What technical factor would you change to reduce her radiation
dose?
B. mAs
A. kVp
B. mAs
C. collimation
D. detector configuration
Which of the following is not part of the patient identification process?
A. establishing an initial rapport with the patient
B. obtaining informed consent
B.obtaining informed consent
C. asking the patient his/her full name
D.asking the patient to state his/her date of birth
What is the premedication strategy for a patient with a prior allergic reaction to
iodinated contrast media before a contrast-enhanced CT?
A. premedication with steroids and
antihistamines A. premedication with steroids and antihistamines
B.increase fluids for 48 hours before the examination
C. having the patient stop his/her blood thinning medication
D.administration of a negative contrast
2/15
CT registry Exam Solved Correctly To Score A+
What dose descriptor is calculated with the following formula?
X = (2/3)(CTDI₁₀₀) periphery + (1/3) (CTDI₁₀₀) center
C. CTDIw A. DLP
B. CTDIvolume
C. CTDIw
D. MSAD
When performing an invasive CT examination, such as a RFA of the liver, a
partial thromboplastin time (PTT) is drawn. What does a partial thromboplastin
time test measure?
D. time for normal clot formation
plasma A. the time required to increase the platelet count by 10%
B.the time required to manufacture prothrombin
C. the time required to located a decrease in the platelet count by 10%
D.time for normal clot formation plasma
What kind of consent is obtained prior to a noninvasice CT procedure?
A. simple expressed
A. simple expressed
B. implied
C. written informed
D. informed
Which of the following methods must be utilized when placing an IV line in an
antecubital vein?
A. the technologist must wash his/her A. the technologist must wash his/her hands prior to starting an IV line
hands prior to starting an IV line B.the technologist should anesthetize the area using a topical agent
C. the technologist should release the tourniquet as the needle is being inserted
D.the technologist should make a minimum of 4 attempts in the arm before
giving up
1/15
, When administering IV contrast to a patient with a mastectomy, which vein should
be chosen?
B. the vein on the contralateral side A. the vein on the same side as the removed breast
B.the vein on the contralateral side
C. the dorsal pedal veins
D.mastectomy patients should never receive intravenous contrast
What instrument is used to measure radiation exposure?
A. Geiger counter
B. ionization chamber
B.ionization chamber
C. reference detector chamber
D.solid-state detector aperture
What method is used to lower the viscosity of contrast media before injecting?
B. heating the media to body A. heating the media to room temperature
temperature
B. heating the media to body temperature
C. mixing the media with a saline solution
D. viscosity of the media can never be altered
For the radiation workers in the United States, what is their dose limitation per year?
A. 20mSv
B. 50 mSv
B. 50 mSv
C. 75 mSv
D. 100mSv
A female patient arrives to the ER with severe right flank pain. The patient is 5'4"
weighing 100 lbs. What technical factor would you change to reduce her radiation
dose?
B. mAs
A. kVp
B. mAs
C. collimation
D. detector configuration
Which of the following is not part of the patient identification process?
A. establishing an initial rapport with the patient
B. obtaining informed consent
B.obtaining informed consent
C. asking the patient his/her full name
D.asking the patient to state his/her date of birth
What is the premedication strategy for a patient with a prior allergic reaction to
iodinated contrast media before a contrast-enhanced CT?
A. premedication with steroids and
antihistamines A. premedication with steroids and antihistamines
B.increase fluids for 48 hours before the examination
C. having the patient stop his/her blood thinning medication
D.administration of a negative contrast
2/15
