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20 Cards in this Set
- Front
- Back
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The desired effect of I-131 admin for a cancerous thyroid is?
a) to block thyroid function b) to reduce thyroid function c) to inhibit iodide oxidation d) ablation of thyroid tissue e) reduce the chance for hypothyroidism |
D
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Adenosine is what type of pharmaceutical?
a) beta blocker b) antiarrhythmic drug c) calcium blocker d) vasoconstrictor e) vasodilator |
E
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Captopril renal scans are used to assess?
a) obstruction b) chronic renal failure c) renal artery stenosis d) acute renal failure e) pyelonephritis |
C
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a 256X256 image aquired in byte mode will require how many bytes of memory?
a) 256 b) 512 c) 25,600 d) 52,245 e) 65,536 |
E. Multiply the matrix size
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What is the gamma ray energy of Sr-89?
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Sr-89 is a pure beta emitter with no gamma energies being admitted.
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What is the clinical use of Sm-153?
a) therapy for polycythemia b) palliative therapy for bone metastasis c) bone imaging d) renal therapy e) therapy for lymphoma |
B
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What radiopharmaceutical is used for the treatment of polycythemia vera?
a) Sr-89 metastron b) I-131 hippuran c) P-32 sodium phosphate d) P-32 sodium chromate e) In-111 oncoscint |
C
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What are the limits for a radioactive yellow III label?
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200 mr/hr at the surface and 10 mr/hr at 1 meter
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what are the half life and energy of I-123?
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13 hrs and 159 KeV
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What is the radiopharmaceutical of choice for adrenal medullary imaging?
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I-131/I-123 MIBG ( m-idobenzylguanidine)
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which fourier functional image represents a pixel change in counts over time?
A) constancy B) Phase C) relativity D) amplitude E) coincidence |
D
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fourier phase images of the heart represent?
A) changes in amplitude B) changes in rhythm C) changes in synchronization D) ischemic changes E) myocardial infarction |
C
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what effect does captopril have?
A) constricts the sphincter of oddi B) ACE inhibitor C) Diuretic D) vasodilator E) increases blood pressure |
B
angiotensin converting enzyme. used in renal scans for detection of renal vascular hypertension. |
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captopril cause a/an?
A) increase in blood pressure B) decrease in blood pressure C) increase in heart rate D) increase in urine production E) none of the above |
B
captopril is an ACE inhibitor and lowers blood pressure and is useful in diagnosing renal vascular HTN |
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Tc-99m mertiatide (mag3) is cleared by?
A) glomerular filteration B) tubular secretion C) both D) neither |
C
80% tubular secretion (active transport) and 20% glomerular filtration (passive filtering process) |
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which of the following is not an indication for performing a HMPAO brain scan?
A) CVA B) alzheimers C) epileptic seizures D) hydocephalus E) substance abuse |
D
in the case of hydocephalus In-111 DTPA administered intrathecally is used |
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a term NOT associated with sine waves is?
A) amplitude B) contour C) phase D) frequency |
B
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how many Mci of Tc-99m would you have to give to a patient for it to be a reportable event?
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>104 mCi of Tc-99m
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what type of radioactive material is best shielded by lucite?
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Beta emitter
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what is the contamination limit of a wipe test?
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2200 dpm per 100 cm^2
1500 cpm 0.001 uCi |
