ABFAS BOARD EXAM
QUESTIONS WITH 100%
CORRECT DETAILED
ANSWERS WITH
RATIONALES ALREADY
GRADED A+ LATEST
VERSIONS 2025
[Author name]
[COMPANY NAME] [Company address]
,1. changes to X-ray machine increase mA by 1.5x
for fiberglass cast
2. What motion unlocks the Pronation of the STJ, this causes the femur to
knee during gait cycle? rotate laterally which will unlock the knee
3. Which inhaled anesthetic isoflurane
is the most cardioprotec-
tive?
4. What is the half life of he- 6 hours
parin?
5. Difference between tech- Technetium binds to hydroxyapatite and is seen
netium and gallium in areas of high bone turnover.
Gallium binds to WBC's and is seen in areas of
increased inflammation.
If used together, Technetium should be given
first.
6. Which ASA class has 2-3x ASA class III: specifically a pulmonary compli-
risk for post-op complica- cation
tions.
7. How is LMWH excreted? through the kidneys; should be avoided in those
with kidney failure
8. Which local anesthetic Marcaine
is lease likely to cause
methemoglobinemia? although is is very rare for the other local anes-
thetics anyway.
,9. What does exposure mean Any factors or characteristics that may ex-
in medical research? plain/predict a certain outcome.
10. What types of fixation Lag screws and dynamic compression plates.
provide compression and
also osteogenesis. The lack of motion stimulates osteogenesis
How do things provide os-
teogenesis?
11. Why is alcohol used to di- phenol is insoluble in water, but is soluble in
lute phenol? alcohol.
12. Should diuretics be held yes, hypotension is common in surgery and tak-
prior to surgery? ing a diuretic may exacerbate the hypotension
13. anticoagulant that is a di- dabigatran
rect thrombin inhibitor?
14. Term in a research study study population
for all people who enter a
study regardless of treat-
ment, exposure, or ability
to complete the study?
15. antibiotic for open fracture 10-20 million units of penicillin due to possibility
at a farm? of clostridium contamination.
16. Why is thermal necrosis of increased zone of resorption at osteotomy site
bone problematic?
17. met base osteotomy with crescentic osteotomy
high rate of dorsal malu-
nion
18. Correction of digiti quinti inability of V-Y plasty to correct the deformity
varus with V-y skin plas- adequately
, ty often doesn't work due
to...
19. When is midstance phase opposite side toe off.
of gait?
20. apex of deformity in anteri- 1st met cuneiform joint
or cavus foot with occur at
which joint?
21. effect on mu receptors Mu receptor are up regulated, this causes opi-
with surgery? oids to be more effective for pain control
What affect does this have
on pain killers?
22. most common complica- Removal of the wrong extra digit.
tion with polycactyly treat- -Need adequate pre-op planning and vascular
ment. assessment.
23. What are the stages of 1. amnesia/analgesia
anesthesia? 2. delirium
3. surgical anesthesia
4. overdose
24. What are the characteris- Surgical anesthesia:
tics of stage 3 anesthesia? 1) regular respiration, no eyelid reflex
4 planes 2) slowed breathing
3) stops breathing, no laryngeal reflexes
4)intercostal paralysis, fully dilated pupils
25. Characteristics of moder- responds purposefully. Does not require airway
ate/conscious sedation intervention
26. what is the least common Central polydactyly.
polydactyly?
postaxial polydactyly is the most common
QUESTIONS WITH 100%
CORRECT DETAILED
ANSWERS WITH
RATIONALES ALREADY
GRADED A+ LATEST
VERSIONS 2025
[Author name]
[COMPANY NAME] [Company address]
,1. changes to X-ray machine increase mA by 1.5x
for fiberglass cast
2. What motion unlocks the Pronation of the STJ, this causes the femur to
knee during gait cycle? rotate laterally which will unlock the knee
3. Which inhaled anesthetic isoflurane
is the most cardioprotec-
tive?
4. What is the half life of he- 6 hours
parin?
5. Difference between tech- Technetium binds to hydroxyapatite and is seen
netium and gallium in areas of high bone turnover.
Gallium binds to WBC's and is seen in areas of
increased inflammation.
If used together, Technetium should be given
first.
6. Which ASA class has 2-3x ASA class III: specifically a pulmonary compli-
risk for post-op complica- cation
tions.
7. How is LMWH excreted? through the kidneys; should be avoided in those
with kidney failure
8. Which local anesthetic Marcaine
is lease likely to cause
methemoglobinemia? although is is very rare for the other local anes-
thetics anyway.
,9. What does exposure mean Any factors or characteristics that may ex-
in medical research? plain/predict a certain outcome.
10. What types of fixation Lag screws and dynamic compression plates.
provide compression and
also osteogenesis. The lack of motion stimulates osteogenesis
How do things provide os-
teogenesis?
11. Why is alcohol used to di- phenol is insoluble in water, but is soluble in
lute phenol? alcohol.
12. Should diuretics be held yes, hypotension is common in surgery and tak-
prior to surgery? ing a diuretic may exacerbate the hypotension
13. anticoagulant that is a di- dabigatran
rect thrombin inhibitor?
14. Term in a research study study population
for all people who enter a
study regardless of treat-
ment, exposure, or ability
to complete the study?
15. antibiotic for open fracture 10-20 million units of penicillin due to possibility
at a farm? of clostridium contamination.
16. Why is thermal necrosis of increased zone of resorption at osteotomy site
bone problematic?
17. met base osteotomy with crescentic osteotomy
high rate of dorsal malu-
nion
18. Correction of digiti quinti inability of V-Y plasty to correct the deformity
varus with V-y skin plas- adequately
, ty often doesn't work due
to...
19. When is midstance phase opposite side toe off.
of gait?
20. apex of deformity in anteri- 1st met cuneiform joint
or cavus foot with occur at
which joint?
21. effect on mu receptors Mu receptor are up regulated, this causes opi-
with surgery? oids to be more effective for pain control
What affect does this have
on pain killers?
22. most common complica- Removal of the wrong extra digit.
tion with polycactyly treat- -Need adequate pre-op planning and vascular
ment. assessment.
23. What are the stages of 1. amnesia/analgesia
anesthesia? 2. delirium
3. surgical anesthesia
4. overdose
24. What are the characteris- Surgical anesthesia:
tics of stage 3 anesthesia? 1) regular respiration, no eyelid reflex
4 planes 2) slowed breathing
3) stops breathing, no laryngeal reflexes
4)intercostal paralysis, fully dilated pupils
25. Characteristics of moder- responds purposefully. Does not require airway
ate/conscious sedation intervention
26. what is the least common Central polydactyly.
polydactyly?
postaxial polydactyly is the most common
