USMLE Step 3 pt. 2 Latest Update 2024-2025 270
Questions and 100% Verified Correct Answers
Actual Exam Guaranteed A+
5 week old kid presents with apnea, cyanotic episodes, rhinorrhea and nasal congestion
in the winter. what do they have and how is it treated - CORRECT ANSWER: RSV
suportive care
*give palivizumad for infants with preterm birth < 29 weeks, chronic lung disease of
prematurity, congenital heart disease that is hemodynamically significant
all patients with suspected scleroderma should be screened for what at diagnosis -
CORRECT ANSWER: PFT - pulmonary htn and interstitial lung disease
define cataplexy - CORRECT ANSWER: sudden onset of muscle weakness, often
triggered by intense emotional episodes (anger, laughing, surprise), common symptom
of narcolepsy - pathognomonic for narcolepsy
describe Hyperosmolar hyperglycemic state (HHS) - CORRECT ANSWER: -likely in DM
T2
-negative serum ketones (which confirms its not DKA)
-bicarb is almost normal
-dehydrated because osmotic diuresis caused by hyperglycemia
-maybe showing mild acute renal failure
-increased serum osmolality = neurologic symptoms
-hyperkalemic due to relative insulin insufficiency and hyperosmolality - in spite of an
overall body potassium deficit caused by increase urinnary excretion
describe left atrial myxomas - CORRECT ANSWER: most common cardiac tumor
present with sx of MV obstruction - diastolic murmur, and tumor plop, heart failure , a fib
they frequently symbolize --> acute material occlusion in otherwise healthy people
describe myasthenia gravis - CORRECT ANSWER: -autoantibodies that attack the ACh
receptors in the NMJ
-ocular and bulbar muscle are most commonly involved
-classic presentation consists of progressive muscular weakness throughout the day
that improves with rest
describe prune belly syndrome - CORRECT ANSWER: renal, urethral, ureteral
abnormalities in the neonate
abdominal musculature is underdeveloped - leads to constipation and weak cough
describe sx of mono - CORRECT ANSWER: -fever
-tonsillitis/pharyngitis
-fatigue
-posterior or diffuse cervical lymphadenopathy
-hepatospenomegaly
-rash after amoxicillin
describe Turners syndrome and hormone replacement and pregnancy - CORRECT
ANSWER: HRT - intimated to prevent osteoporosis and aid with vaginal dryness
they need donor oocytes to get preggo
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