Nuclear Medicine Indian Medical PG Flashcards - Medical Study Cards
Master Nuclear Medicine with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Nuclear Medicine Flashcard Deck - 61 Cards
Flashcard 1: The Tc 99m labelled RBC is used for the assessment of occult GI hemorrage, _____ function and vascular lesions
Answer: cardiac
Flashcard 2: _____ sign in Gallium scan is seen in sarcoidosis
Answer: Panda
Flashcard 3: _____ carcinoid is more likely to have reduced uptake on FDG PET scan than an atypical carcinoid.
Answer: Typical
Flashcard 4: Hepatic scintigraphy shows a "_____" due to healthy hypertrophied caudate lobe, in budd chiari syndrome
Answer: central hot spot
Flashcard 5: In radionuclide imaging, the most useful pharmaceutical agent for skeletal imaging is _____ linked to MDP
Answer: Tc99
Flashcard 6: The _____ sign is seen on gallium-67 scans in the setting of thoracic sarcoidosis
Answer: lambda
Flashcard 7: The annhilation of positron in PET results in the formation of two high energy _____ (511-keV) which travel in opposite directions
Answer: photons
Flashcard 8: MRI in pheochromocytomas shows higher _____, but MIBG is more specific (sensitivity/specificity)
Answer: sensitivity
Flashcard 9: A gamma camera (-camera), also called _____ camera or Anger camera, is a device used to image gamma radiation emitting radioisotopes
Answer: scintillation
Flashcard 10: An ideal therapeutic radioisotope should have _____ beta and low gamma emitter activity
Answer: strong
Flashcard 11: On liver sulphur colloid studies, the _____ appear as photopenic regions.
Answer: hemangiomas
Flashcard 12: What is a 'cold' nodule on 131I radioactive uptake studies indicative of?_____
Answer: Adenoma or carcinoma
Flashcard 13: _____ diverticulum is diagnosed using a 99mTc-pertechnetate study for uptake by heterotopic gastric mucosa
Answer: Meckel
Flashcard 14: Half-life of Tc 99m is _____
Answer: 6 hours
Flashcard 15: I_____ is used for the functional scan of the thyroid
Answer: 123
Flashcard 16: Tc-99m ECD and HMPAO are used in _____ imaging
Answer: Cerebral perfusion
Flashcard 17: A solitary nodule in a hyperthyroid state needs further evaluation by _____.
Answer: 99mTc scan
Flashcard 18: _____ is a nuclear-based imaging test used to localize the Parathyroid glands
Answer: Sestamibi scanning
Flashcard 19: The half-life of I123 is _____
Answer: 12-14 hours.
Flashcard 20: A _____ should be obtained to look for skeletal metastasis in an osteosarcoma
Answer: bone scan
Flashcard 21: Which isotope scan is excreted by the biliary tree of the liver?_____
Answer: Tc99 hepatobiliary iminodiacetic acid scan
Flashcard 22: _____ is used in renal imaging to evaluate renal structure and morphology
Answer: Tc-99m DMSA (dimercaptosuccinic acid)
Flashcard 23: Thallium-201 is rarely used for myocardial perfusion scanning because it is associated with a _____ radiation dose to the patient
Answer: high
Flashcard 24: Parathyroid imaging for distinguishing from thyroid gland can be done using _____ scan
Answer: Tc-99m pertechnetate (nuclear imaging agent)
Flashcard 25: Gallium lung scintigraphy is highly sensitive for _____ pneumonia
Answer: PCP
Flashcard 26: Which imaging technique can help in differentiating between radiation necrosis and recurrence?_____
Answer: PET scan
Flashcard 27: Tc-99m DISIDA and HIDA are used in _____ imaging
Answer: hepatobiliary
Flashcard 28: Both PET and SPECT are often combined with CT which allows correlation between functional and anatomical imaging, so-called _____ imaging.
Answer: hybrid
Flashcard 29: The Renal function is best assessed by which Radionucleide agent?_____
Answer: Tc-99m MAG3
Flashcard 30: Which cancer may show false positive on a sestamibi scan for parathyroid gland?_____
Answer: Hurthle cell CA
Flashcard 31: _____ radioisotope based agents are most frequently used in medical imaging
Answer: Technetium-99m (Tc-99m)
Flashcard 32: _____ sign occurs during radiotracer uptake in Aneurysmal Bone cyst, Giant cell tumor, Chondrosarcoma and Telangiectatic osteosarcoma
Answer: Doughnut
Flashcard 33: _____-labeled tracers are most commonly used in myocardial perfusion imaging, as they are associated with the best image quality and the lowest radiation dose to the patient
Answer: 99mTc
Flashcard 34: _____ is excreted through renal route via both glomeruli infiltration and tubular excretion
Answer: Tc-99m MAG3 (mercaptoacetyltriglycine) (contrast media)
Flashcard 35: Which nuclear imaging technique uses gamma emitting radioisotope?_____
Answer: SPECT (PET/SPECT)
Flashcard 36: Which imaging technique can help in early diagnosis of Alzheimer's disease?_____
Answer: PET scan
Flashcard 37: _____ fat is a potential source of false-positive FDG PET interpretations in oncologic imaging
Answer: Brown
Flashcard 38: Short lived radiotracers like Rubidium-82 is usually combined with _____ induced stress for myocardial perfusion imaging
Answer: pharmacological (exercise/pharmacological)
Flashcard 39: _____ scan is performed to detect reversible myocardial ischemia.
Answer: Thallium
Flashcard 40: _____ of the liver can be accurately diagnosed with isotope-labeled red blood cell scans.
Answer: Hemangioma
Flashcard 41: The Bone scan in multiple myeloma shows _____ spot
Answer: cold
Flashcard 42: Salivary tumor showing hotspot in technitium-99 scan is _____
Answer: Warthin's tumor
Flashcard 43: What investigation may be done after 4 6 months of acute infection (due to VUR) to locate and delineate the scarring?_____
Answer: dimercaptosuccinic acid (DMSA) scan
Flashcard 44: The screening investigation used in reno-vascular hypertension is _____
Answer: Captopril DTPA
Flashcard 45: Tc99m scan is _____ in a patient of amoebic liver abscess
Answer: negative
Flashcard 46: An _____ scan is required for the evaluation of the skeletal metastasis in a patient of neuroblastoma
Answer: I123 MIBG
Flashcard 47: _____ accumulates in the damaged myocardium and area of infarct appears as a hot spot.
Answer: Tc 99m pyrophosphate (nuclear imaging agent)
Flashcard 48: Which isotope scan is taken up by RES of the liver?_____
Answer: Tc99 colloid scan
Flashcard 49: Long lived radiotracers like N-ammonia is usually combined with _____ induced stress for myocardial perfusion imaging
Answer: exercise (exercise/pharmacological)
Flashcard 50: The 99mTc labeled heat-denatured RBC is used for specific _____ assessment
Answer: splenic
Flashcard 51: Which imaging modality can be used to assess Lacrimal pump failure?_____
Answer: Dacryoscintigraphy
Flashcard 52: Which nuclear imaging technique uses positron emitting radioisotope?_____
Answer: PET (PET/SPECT)
Flashcard 53: Tc-99m HSA is used in _____ imaging
Answer: cardiac chamber
Flashcard 54: I_____ produces positron and hence it is used in PET scan
Answer: 124
Flashcard 55: _____ scan is a nuclear medicine test designed to evaluate the function of right and left ventricles of the heart
Answer: MUGA (multi gated acquisition)
Flashcard 56: Which radionucleide scan is useful for diagnosis and follow-up of malignant otitis extrerna?_____
Answer: Gallium-67
Flashcard 57: Non-visualization of the gallbladder after 4 hours of radioisotope scanning is suggestive of _____
Answer: acute cholecystitis
Flashcard 58: The gold standard investigation of acute cholecystitis is _____
Answer: hydroxy iminodiacetic acid (HIDA) scan
Flashcard 59: The investigation of choice for ureteropelvic junction (UPJ) obstruction is _____
Answer: 99mTc-MercaptoAcetyl-triGlycine (MAG3) scan.
Flashcard 60: A _____ scan may be indicated in cases of vesicoureteric reflux, to identify bleeding from a _____ and thyroid scintigraphy.
Answer: 99mTc pertechnetate; Meckel's diverticulum
Flashcard 61: Sensitivity of Technetium-99 m scan for detecting Meckel's diverticulum is _____ by H2-receptor antagonists
Answer: improved
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