Nuclear Medicine Exam Questions with 100% Correct Answer

Nuclear Medicine Exam Questions with 100% Correct Answer There are two points A and B. The distance between them is 30mm. Between both point are three pixels. What is the length of every single pixel? a.1 mm b.5 mm c.10 mm d.30 mm c Functional SPECT or PET of CNS can be used in the imaging of: a) Cerebral blood flow b) Brain regional metabolism c) Receptor distribution and density d) all of the above D What is the most likely effect of F-18 FDG? a.Anatomic b.Metabolic c.Physiologic d.??? b What is the most likely purpose to use F-18 FDG? Searching for ... a.Trauma b.Tumors and metastasis c.Anatomical abnormalities d.?? b Which structure helps to identify children on which was performed a bone scan? (pic. was shown) a.Skull b.Appendicular skeleton c.Epiphyseal growth plate d.??? c Where are beta-particles emitted from? ron ron/ proton pairing n us d Which one of the following is actively transported? a.Tc-99 MAA b.Tc-99 MDP c.Tc-99 MIBI d.I-131 MIBG d when is 18F-FDG used? a.Primary growing tumors b.Metastatic disease c.Necrosis d.All is correc d A patient with lung cancer is scheduled to undergo resectionof the right lower lobe. Given the counts obtained by ROIfor each lung segment below, what percentage of respiratoryfunction will be los? Right apical 32,867 Right middle 38,952 Right lower 41,502 Left apical 39,458 Left lower 45,201 (a) 17 % (b) 19 % (c) 21 % (d) 24 % (e) Cannot be determined from the information given c Which of the following make 131I suitable for therapy? a. uptake in thyroid tissue regardless of function b. alpha emissions c. short half life d. beta emissions d What do beta particles emit? a.Electrons b.Photons c.Photons and electrons d.Something else a? Vet ikke om spørmålet skulle vœrt slik? In beta decay, which of the following is emitted? An ordinary electron A positron A positron/electron pair Annihilation radiation What is the most likely effect of F-18 FDG metabolic Which one of the following is actively transported? I-131 MIBG The annual limit of public exposure from a single source of ionizing radiation is: 1 mSv 5 mSv 50 mSv 100 mSv 1 mSv The physical half-life of 131Iis: a.Too short to provide clear images with good SNR b.Long enough to ensure good therapy effect c.Not measurable due to emission of 2 types ofradiation d.Shorter than half-life of i-123 b We have 50 Mbq in 10 ml, and we want a solution of 50 kBq/ml. how much water needs to be added to this solution? a.1090 ml b.90 ml c.990 ml d.490 ml c 50MBq = 50.000.000 Bq 50 kBq = 50.000 Bq 50.000.000 – x X = 1000ml 1000ml – 10ml = 990 ml ? 50.000.000Bq/ (10ml+x(ml)) = 50.000Bq/ml=> 50.000.000Bq = 500.000Bq + 50.000x(ml)=> 50.000.000 - 500.000 = 50.000x(ml)=> 49.500.000 = 50.000x(ml)=> 49.5000.000/50.000= x(ml)=> x= 990ml SNRmeans a.Slow neuron reactions b.Several nuclear radiation c.Signal-to-noise-ratio d.Single nuclide radiography c (s 70/252) The polar maps (bull’s eye display) created after myocardial perfusion imaging represent: a.Only short axis images of heart b.An entire set of stress or rest SPECT images ? c.All parts of the myocardial wall except apex d.None of above a b? kan også vœre riktig Which of the following describes a pediatric bone scan? a.Increased uptake in long bones b.Increased uptake along epiphyseal plates c.Decreased uptake in long bones d.Overall decreased uptake in bones b All of the following are criteria factors in keeping radiation exposure to a minimum except: a.Time spent near the radioactive source b.Geometry of the container holding the source of radiation c.Distance from the source of radiation d.Shielding of the radioactivesource b The fundamental particles of greatest interest in the physics of nuclear medicine are proton, neutron and electron. Of these: a.The electron is the least massive and has negative charge b.The proton is the least massive and has a negative charge c.The proton is the least massive and has positive charge d.The neutron is the most massive and has positive charge a There is 30mm between two points that are 3 pixels apart. What is the pixel size? a.1 mm b.5 mm c.10 mm d.30 mm c Which of the following is measured in millimetres a.Energy resolution b.Spatial resolution c.Field uniformity d.Temporal resolution b Energy resolution = Bq/cm Field uniformity= magnetic property not radioactive A/m Temporal resolution= in respect to time If administration of furosemide, a patient still has activity in renal calyces, there is probably a.Poor renal function b.Renal artery occlusion c.Renal infarction d.Upper urinary tract obstruction d Furosemid is used to detect if obstruction of kidney is complete or partial. If the activity will quickly drop = not complete obstruction In MUGA ventriculography, the stress tes