RADT 1400 Exam 1 (2026) – 150+ Questions on Hand Anatomy, Carpals, Projections, Positioning & Radiographic Terminology

This RADT 1400 Exam 1 (2026) study guide contains over 150 structured exam questions and correct answers covering hand anatomy, carpal bone identification, radiographic projections, positioning techniques, central ray (CR) alignment, and foundational radiographic terminology. The material thoroughly reviews phalangeal counts (14 per hand), pronation and supination definitions, the carpal mnemonic (Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate), proximal vs distal carpal rows, and key identification features such as the scaphoid (most commonly fractured), lunate (crescent-shaped), triquetrum (pyramidal), pisiform (smallest), capitate (largest and centrally located), and hamate (hooked process) as outlined on pages 1–3. The guide provides detailed instruction on hand and finger radiographic positioning, including PA, PA oblique, lateral (fracture vs foreign body positioning), AP thumb, and decubitus projections. It specifies IR sizes (10x12 for hand, 8x10 for fingers), 40-inch SID tabletop setup, 1-inch collimation margins, and CR centering landmarks such as the 3rd MCP for PA hand, 2nd MCP for lateral hand, PIP for digits 2–5, and MCP for the thumb. It also explains the anatomical snuff box (visible with thumb abduction/extension), saddle joint articulation at the trapezium, and carpal tunnel syndrome (median nerve compression). Foundational radiographic science concepts are extensively covered, including anatomical planes (midsagittal, midcoronal, horizontal, oblique), directional terms (anterior, posterior, medial, lateral, proximal, distal, superior, inferior), body positions (supine, prone, Fowler’s, Sims, Trendelenburg, lithotomy), decubitus rules (horizontal beam and recumbent patient), AP vs PA beam path, X-table lateral projection, and definitions of projection, view, method, and radiographic position. The structured Q&A format reinforces exam-level recall, positioning accuracy, and terminology mastery required in introductory radiography courses. This document may concern: – Radiography students enrolled in RADT 1400 – First-semester radiologic technology students – ARRT student candidates reviewing positioning fundamentals – Limited Medical Radiologic Technologist (LMRT) students – Students preparing for introductory radiographic anatomy and positioning exams Keywords: RADT 1400 exam 1 2026, 14 phalanges per hand, carpal bones mnemonic some lovers try positions that they cannot handle, scaphoid most fractured carpal, lunate crescent shaped bone, hamate hook of hamate, capitate largest carpal, trapezium saddle joint thumb, PA hand projection CR 3rd MCP, lateral hand CR 2nd MCP, 40 inch SID tabletop, 10x12 IR portrait orientation, PA oblique ok sign positioning, karate chop lateral foreign body, anatomical snuff box scaphoid, carpal tunnel median nerve compression, midsagittal midcoronal horizontal plane, AP vs PA beam path, decubitus horizontal beam rule, X table lateral projection, radiographic terminology definitions