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RAD 121
Test 2
| Question | Answer |
|---|---|
| How many bones are found in the wrist? | 8 |
| Is the glenoid process part of the proximal humerus? | no |
| What is the joint found between the base of the third metacarpal and carpal bone? | carpometacarpal |
| What is the term used to describe the medial end of the clavicle? | sternal extremity |
| Which carpal articulates with the radius? | scaphoid |
| What is the anterior surface of the scapula referred to as? | the costal surface |
| Which of the carpal bones is considered to be the largest? | capitate |
| Which rotation of the humerus will result in a lateral position of the proximal humerus? | internal rotation |
| Which carpal articulates with both the fourth and fifth metacarpals? | hamate |
| How much CR angulation should be used for a scapular Y projection? | no CR angle |
| Which is the most commonly fractured carpal bone? | scaphoid |
| How much CR angulation is required for an asthenic patient for an AP axial projection of the clavicle? | 30 |
| Which carpal bone is the smallest? | pisiform |
| Where is the CR centered for the bilateral acromioclavicular joint projection on a single 14X17 inch IR? | at the affected AC joint |
| What is the name of the joint found between the proximal and distal phalanges of the first digit? | interphalangeal joint |
| What bony structure is found on the distal aspect of the ulna? | head of ulna |
| A radiograph of an AP clavicle reveals that the sternal extremity is partially collimated off. What should the technologist do? | repeat the AP projection and correct collimation |
| A patient is in the ED with a possible right AC joint separation. Right clavicle and AC joint exams are ordered. The clavicle is taken first and shows a small fracture of the midshaft of clavicle. What should you do> | consult with ED physician before continuing with the AC joint study |
| Which of the following structures is considered to be most proximal? a. coronoid process b. olecranon process c. radial tuberosity d. head of ulna | olecranon process |
| What AP shoulder projection demonstrates the greater tubercle in profile medially? | none. The greater tubercle is always profiled laterally. never medially. |
| What AP shoulder projection demonstrates the lesser tubercle in profile medially? | AP internal rotation |
| The AP humerus requires the epicondyles to be how in relation to the IR? | parallel |
| A radiograph of an AP axial projection of the clavicle demonstrates that the clavicle is within the mid aspect of the lung apices. What should the technologist do to correct this error? | increase the cephalic CR angle during repeat exposure |
| Which structures primarily form the hinge-like structure and movement of the elbow joint? | trochlea and olecranon process |
| What two structures form the distal radioulnar joint? | ulnar notch and head of the ulna |
| What two bony landmarks are palpated for positioning of the elbow? | humeral epicondyles |
| Interphalangeal joints have what type of movement? | hinge-Ginglymus |
| The radio carpal wrist joint is what type of movement? | ellipsoidal |
| What is the first carpometacarpal joint classified as? | sellar |
| An ellipsoidal joint allows movement in how many directions? | 4 |
| The bending or forcing of the hand laterally with the hand pronated in a PA projection is known as what? | ulnar deviation |
| A general positioning rule is to place the long axis of the part [parallel/perpendicular] to the long axis of the IR. | parallel |
| Where is the CR placed for a PA projection of the third digit? | PIP joint |
| What angle of the hand is required for a PA oblique projection? | 45 |
| Where is the CR for a PA projection of the hand? | 3rd MCP |
| Why is it important to keep the phalanges parallel to the IR for a PA oblique projection of the hand? | prevents foreshortening of the pahalages and obscuring of interphalangeal joints |
| How much rotation of the humeral epicondyles is required for the AP medial oblique projection of the elbow? | 45 |
| How much rotation of the hand is required for the AP bilateral hand projection? | 45 |
| What will lead to the proximal radius crossing over the ulna? | pronation of the hand |
| What is the purpose of performing the AP partially flexed projections of the elbow? | to provide an AP perspective if patient cannot fully extend elbow |
| What routine projection of the elbow best demonstrates the radial head and tuberosity free of superimposition? | AP oblique with lateral rotation |
| Which elbow routine best demonstrates the olecranon process in profile? | lateral |
| How should humeral epicondyles be aligned for a lateral projection of the elbow? | perpendicular to IR |
| A radiograph of the elbow demonstrates the radius directly superimposed over the ulna and the coronoid process in profile. What projection of the elbow has been performed? | medial rotation oblique |
| What routine projection of the elbow will best demonstrate an elevated or visible posterior fat pad? | true lateral with 90 degree flexion |
| The AP oblique bilateral hands projection is performed to evaluate for early signs of what? | rheumatoid arthritis |
Created by:
eheaden