.png){kind=logo}
PDF Download
CHT EXAM PREP
Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -100 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: In a high ulnar nerve lesion:
Answer:
-clawing is less noticeable secondary to the non-innervated FDP, which limits the clawing appearance at the IPJs
Question 2: Rolando fx
Answer:
-is a "Y" or "T" shaped fx at the base of the 1st MC and is comminuted -Usually have a worse prognosis and treated with ORIF -If fx is severly comminuted, then fusion may occur if pt is very painful Question 3: To assess C5:
Answer:
-perform a biceps reflex test Question 4: Positive "drop arm" test:
Answer:
-significant disruption of supraspinatus
Question 5: Herpetic Whitlows are frequently mistaken for a felon:
Answer:
However, vesicles are present in herpetic whitlow , but are not in felons.Both whitlows and felons can be tender.Whitlow run a 2-4 week course, not 72 hours.Whitlows occur most frequently in medical and dental workers.
Question 6: Grayson's ligaments
Answer:
-originate from the volar aspect of the flexor tendon sheath, runs volar to the neurovascular bundle, and insert into the skin.-contributes to the PIPJ joint contracture in Dupytren's dx
Question 7: 4 cardinal signs of Kanavel
Answer:
-Flexed posture of the digit -Uniform swelling of the digit -Tenderness over the length of the involved sheath -Severe pain on attempted hyperextension
Question 8: Pronator teres
Answer:
-is also a contributor to elbow flexion
Question 9: Symptoms of CRPS
Answer:
-pain, swelling, hyperhydrosis, decreased ROM, contractures, stiffness, dystonia, and/or trophic changes
Question 10: Madelung deformity
Answer:
-genetic disorder commonly detected later in childhood d/t limited development of the distal radius -pt will be limited with wrist extension and FA supination -malformation of the limb in the radial-ulnar axis. overall decreased growth of the distal radius and with increased slope or tilt of the distal radius. results in ulna longer than radius, resulting in subluxation, ulnocarpal impaction, or both.
Question 11: Skier's thumb
Answer:
Injury to MCP ULNAR collateral ligament Question 12: After finding radial pulse at wrist, examiner applies downward traction on the test extremity while the pt's neck is hyper-extended and rotated to the opposite side. if there is
disappearance of the pulse, it is considered:
Answer:
-a positive test for TOS
Question 13: Paronychia
Answer:
-skin infection around the fingernails or toenails. usually affects the skin at the base (cuticle) or up the sides of the nail.
Question 14: Mannerfelt lesion
Answer:
-occurs through an attrition rupture over a volar bony spicule on the scaphoid that pierces through the wrist capsule -may also occur to the FDP of the IF/MF later on
Question 15: Pancoast tumor
Answer:
-rare form of lung cancer; located at very top of right or left lung and may push on lower brachial plexus and result in ulnar neuropathy (C8-T1 distribution) Question 16: Fusion of the scaphoid-trapezoid-trapezium (STT) joint is indicated for:
Answer:
-degenerative arthritis of the STT joint -AVN of the lunate -scapholunate instability
Question 17: Lesion DISTAL to Guyon's canal
Answer:
-will only affect volar portions of the hand and digits
Question 18: Clawing in a high ulnar nerve lesion is rarely present because
Answer:
-the FDP is affected as well and isn't pulling the IP's into more flexion.-when this nerve begins to return and the more distally innervated muscles haven't, the ulnar palsy splint becomes a necessity rather than a choice
Question 19: Axonotmesis
Answer:
-moderate nerve injury
Question 20: Essex-Lopresti Fracture
Answer:
-involves disruption of IOM w/ proximal radial migration after fx of radial head -Ligamentous injury sustained at DRUJ at time of the radial head fx -Radial head must be repaired to reestablish congruence of DRUJ & is usually managed by ORIF -DRUJ dislocation can be reduced by supination of the FA, & may be pinned for 6 weeks to allow healing of the IOM, prevent proximal radius migration, and ultimately prevent distal wrist pathology
Question 21: Spinal accessory nerve
Answer:
-innervates the trapezius and SCM
Question 22: Clinodactyly
Answer:
-component failure of the differentiation of the little finger, present with a bend finger, typically of the DIPJ in the coronal plane
Question 23: During acute compartment syndrome
Answer:
-the following are decreased: tissue blood flow, tissue oxygenation, tissue function.-however, local venous pressure is not decreased
Question 24: Radial shortening osteotomy
Answer:
-may be effective in early tx of lunate avascular necrosis
.png)