5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
usmle step 3: uworld practice test 2: (2025)
ACTUAL EXAM COMPREHENSIVE QUESTIONS
AND VERIFIED ACCURATE SOLUTION (DETAILED
& ELABORATED) |GET IT 100% ACCURATE!! 2025
TEST!!
Save
Terms in this set (145)
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 1/49
,5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
3 yo M has a 8 day hx of giardia lamblia
3-4 daily episodes of soft, -greasy, foul-smelling diarrhea, bloating,
foul-smelling diarrhea. flatus/belching, weight loss
Increased belching & -transmitted thru fecal-oral route or thru
Flatus, decreased appetite contaminated food or water
but drinks liquids without -ingestion of unfiltered water while camping or hiking
difficulty. 6 yr old sister --drinking, swimming or consuming food from
has same sx. Fam went on contaminated water
cruise to Mexico last -sx DON't present ASAP b/c takes time for cysts to
month so he tried new mature into trophozoites in host intestines
foods and went swimming -tx: metronidazole
at beach&in cruise ship
pool. Went on wkd
camping trip 3 wks ago
and ate the fresh fish.
After vacation, he went
back to reg diet fruits,
veggies 7 meats. P 108,
hyperactive bowel sounds.
negative stool occult
blood. CAUSE of sx?
-causes viral gastroenteritis
-cruise-ship outbreaks
norovirus
-BRIEF duration: resolves within days
-VOMITING more commonrota
watery diarrhea in kids age 2 and under
rotavirus -within 1-2 DAYS of exposure
-also emesis, abd pain
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 2/49
,5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
-combines results of several studies to increase
statistical power thru an increased sample size
-ideally, the results are the same as produced by
single study w/larger sample size
-BUT increase in statistical power may lead to
meta-analysis
statistically SIGNIFICANT effect sizes that maybe
CLINICALLY IRRELEVANT*=detects a very small
effect(eg risk ratio)--not practical
---also, validity depends on the design-metanalysis
isn't always more valid than other study designs
cephalohematoma: DOESN'T cross suture lines &
resolves within WEEKS, can lead to jaundice b/c RBC
breakdown&Calcification after resolution-located
cephalohematoma vs UNDER periosteum
caput succedaneum
Caput succedaneum: like a CAP crosses suture
lines&resolves DAYS after birth-serosanuineous fluid
collection above periosteum/beneath scalp
-bleeding under galea aponeurotica
-fatal complication of vacuum-assisted deliveries
subgaleal hemorrhage
-rapidly expanding swelling leading to hypovolemic
shock from blood loss
Apparent leg-length discrepancy when pt lies supine
w/knees flexed: affected leg looks shorter(Galeazzi
test)
2 week old girl has
DX: developmental dysplasia of hip
asymmetric gluteal
-abnormal development of hip joint tht prevents
skinfolds&increased #
femoral head from sitting properly in acetabulum
thigh creases on
-RF: females, breech position, FH DDH, excessively
right>left. what else
tight swaddling
would be found?
-instability during attempted dislocation&reduction if
palpable clunk heard (Barlow and Ortolani
maneuvers)
who has asymmetric moro erb palsy (seen in large for gestational age infants)
reflex?
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 3/49
, 5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
who has sacral dimple? neural tube defect (myelomeningocele)
Consult orthopedic surgeon
--when ID within first 6 months of life, treat by
maintaining hip in flexed&abducted position in Pavlik
harness for 3 months
what's the next step after
-when hip extension & adduction are limited, the
u/s shows dislocated right
dislocated hip is reduced and/or stabilized and
hip w/flat acetabulum and
normal acetabular development is promoted
positive barlow and
--monitor pavlik harness closely by orthopedic
ortolani tests?
surgeon b/c associated risks( avascular necrosis,
femoral nerve palsy) w/excessive hip flexion &
abduction
>hip radiograph if >4 months old
most infants who are treated early have no long-
prognosis for term sequelae
development dysplasia of -the need for surgical correction for DDH correlates
hip w/increased age at diagnosis: <5% of pts dx & treated
w/pavlik harness in early infancy require surgery
-single episode of severe vertigo that can last for
days & is self-limited
-labyrinthitis when associated w/unilateral hearing
loss
-normal MRI
-after viral infection
vestibular
-feeling of imabalnce and unsteady gait
neuritis(labyrinthitis)
-positive head-thrust test:pt focuses on examiner's
nose while examiner quickly rotates their head 10-15
degrees to the side; normally the eyes remain fixed
on the target but in pt w/peripheral vestibular d/o, the
eyes initially rotate w/the head before voluntarily
redirecting back to the target (corrective saccade)
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 4/49
usmle step 3: uworld practice test 2: (2025)
ACTUAL EXAM COMPREHENSIVE QUESTIONS
AND VERIFIED ACCURATE SOLUTION (DETAILED
& ELABORATED) |GET IT 100% ACCURATE!! 2025
TEST!!
Save
Terms in this set (145)
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 1/49
,5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
3 yo M has a 8 day hx of giardia lamblia
3-4 daily episodes of soft, -greasy, foul-smelling diarrhea, bloating,
foul-smelling diarrhea. flatus/belching, weight loss
Increased belching & -transmitted thru fecal-oral route or thru
Flatus, decreased appetite contaminated food or water
but drinks liquids without -ingestion of unfiltered water while camping or hiking
difficulty. 6 yr old sister --drinking, swimming or consuming food from
has same sx. Fam went on contaminated water
cruise to Mexico last -sx DON't present ASAP b/c takes time for cysts to
month so he tried new mature into trophozoites in host intestines
foods and went swimming -tx: metronidazole
at beach&in cruise ship
pool. Went on wkd
camping trip 3 wks ago
and ate the fresh fish.
After vacation, he went
back to reg diet fruits,
veggies 7 meats. P 108,
hyperactive bowel sounds.
negative stool occult
blood. CAUSE of sx?
-causes viral gastroenteritis
-cruise-ship outbreaks
norovirus
-BRIEF duration: resolves within days
-VOMITING more commonrota
watery diarrhea in kids age 2 and under
rotavirus -within 1-2 DAYS of exposure
-also emesis, abd pain
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 2/49
,5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
-combines results of several studies to increase
statistical power thru an increased sample size
-ideally, the results are the same as produced by
single study w/larger sample size
-BUT increase in statistical power may lead to
meta-analysis
statistically SIGNIFICANT effect sizes that maybe
CLINICALLY IRRELEVANT*=detects a very small
effect(eg risk ratio)--not practical
---also, validity depends on the design-metanalysis
isn't always more valid than other study designs
cephalohematoma: DOESN'T cross suture lines &
resolves within WEEKS, can lead to jaundice b/c RBC
breakdown&Calcification after resolution-located
cephalohematoma vs UNDER periosteum
caput succedaneum
Caput succedaneum: like a CAP crosses suture
lines&resolves DAYS after birth-serosanuineous fluid
collection above periosteum/beneath scalp
-bleeding under galea aponeurotica
-fatal complication of vacuum-assisted deliveries
subgaleal hemorrhage
-rapidly expanding swelling leading to hypovolemic
shock from blood loss
Apparent leg-length discrepancy when pt lies supine
w/knees flexed: affected leg looks shorter(Galeazzi
test)
2 week old girl has
DX: developmental dysplasia of hip
asymmetric gluteal
-abnormal development of hip joint tht prevents
skinfolds&increased #
femoral head from sitting properly in acetabulum
thigh creases on
-RF: females, breech position, FH DDH, excessively
right>left. what else
tight swaddling
would be found?
-instability during attempted dislocation&reduction if
palpable clunk heard (Barlow and Ortolani
maneuvers)
who has asymmetric moro erb palsy (seen in large for gestational age infants)
reflex?
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 3/49
, 5/20/25, 7:26 AM usmle step 3: uworld practice test 2: (2025) ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ACCURATE SOLUT…
who has sacral dimple? neural tube defect (myelomeningocele)
Consult orthopedic surgeon
--when ID within first 6 months of life, treat by
maintaining hip in flexed&abducted position in Pavlik
harness for 3 months
what's the next step after
-when hip extension & adduction are limited, the
u/s shows dislocated right
dislocated hip is reduced and/or stabilized and
hip w/flat acetabulum and
normal acetabular development is promoted
positive barlow and
--monitor pavlik harness closely by orthopedic
ortolani tests?
surgeon b/c associated risks( avascular necrosis,
femoral nerve palsy) w/excessive hip flexion &
abduction
>hip radiograph if >4 months old
most infants who are treated early have no long-
prognosis for term sequelae
development dysplasia of -the need for surgical correction for DDH correlates
hip w/increased age at diagnosis: <5% of pts dx & treated
w/pavlik harness in early infancy require surgery
-single episode of severe vertigo that can last for
days & is self-limited
-labyrinthitis when associated w/unilateral hearing
loss
-normal MRI
-after viral infection
vestibular
-feeling of imabalnce and unsteady gait
neuritis(labyrinthitis)
-positive head-thrust test:pt focuses on examiner's
nose while examiner quickly rotates their head 10-15
degrees to the side; normally the eyes remain fixed
on the target but in pt w/peripheral vestibular d/o, the
eyes initially rotate w/the head before voluntarily
redirecting back to the target (corrective saccade)
https://quizlet.com/1046106749/usmle-step-3-uworld-practice-test-2-2025-actual-exam-comprehensive-questions-and-verified-accurate-solution-detai… 4/49
