NMTCB(RS) study guide
NMTCB(RS) · Work through your exam, one topic at a time.
The NMTCB(RS) refers to certification examinations offered by the Nuclear Medicine Technology Certification Board, an organization formed for the purpose of creating and maintaining examinations for nuclear medicine technologists (NMTs). The board describes its credential as recognized in the nuclear medicine profession as the premier examination for nuclear medicine technologists, recognized by state licensure agencies throughout the United States, and recognized by employers as a valid, high-quality certification exam. Passing the general nuclear medicine examination allows the technologist to use the professional credential "CNMT." Beyond the general nuclear medicine exam, the board also offers a post-primary computed tomography (CT) examination, along with NCT and PET specialty examinations and the Nuclear Medicine Advance Associate (NMAA) examination. Prospective applicants can find applications and preparation materials for each examination in the prospective applicants section of the board's website, and program directors have access to exam preparation resources and examination statistics for graduates of their particular program. Topics on this exam: General Nuclear Medicine (CNMT) and Post-Primary Computed Tomography (NMTCB(CT)). The NMTCB(RS) study guide has 2 sections and about 685 words.
01General Nuclear Medicine (CNMT): Core Concepts, Radiopharmacy, and Exam Traps
General nuclear medicine questions blend instrumentation, radiopharmacy, radiation safety, and organ-specific imaging. You must be fluent in the physics of detection (photoelectric absorption, Compton scatter, and how pulse-height analyzers window the photopeak), collimator selection (parallel-hole low-energy high-resolution vs. high-sensitivity; pinhole for small structures; converging for magnification), and camera quality control (daily uniformity/flood, energy-peak calibration, resolution and linearity checks). Know the common kits and their normal biodistribution: Tc-99m MDP for bone, Tc-99m sulfur colloid for liver/spleen and marrow, Tc-99m mebrofenin for hepatobiliary, Tc-99m DTPA or MAG3 for renal, Tc-99m pertechnetate for thyroid and Meckel studies, and I-123 or Tc-99m for thyroid uptake.
328 words, about 2 min02Post-Primary Computed Tomography (NMTCB(CT)): Physics, Protocols, and Hybrid Imaging
Post-primary CT questions assume you already know nuclear medicine and test CT physics, radiation dose, contrast, and image quality. Core physics includes the x-ray tube (tungsten anode, heel effect), filtration, collimation, detector arrays, and the reconstruction pipeline (filtered back projection vs. iterative reconstruction). You must understand CT numbers (Hounsfield units: water 0, air about -1000, bone hundreds to 1000), window width and level, and how pitch, slice thickness, and kVp/mA interact with dose and noise.
357 words, about 2 min