ABSITE Exam Questions And Answers 2025
Update.
[bicarb] vs. [Cl-] at low vs. high levels of pancreatic exocrine secretion? - Answer✔Low stimulus:
[Cl-] high (110mEq/L)
High stimulus: [Cl-] falls
1-year and 10-year patency rates for saphenous vein graft vs. internal mammary grafts during
CABG - Answer✔1-year: SVG 80-90%; IMA 98%
10-year: SVG 50%; IMA 90%
20-year risk for developing gallbladder CA in patients with gallstones - Answer✔The 20-year risk
of developing gallbladder carcinoma in patients with gallstones has been estimated to be in the
range of 0.13% for the general population.
3 cardinal signs of urethral injury (in a male)? - Answer✔high-riding prostate blood at meatus
perineal hematoma
5-year survival for Kasai's - Answer✔<50%
Achilles reflex assesses which nerve root? - Answer✔S1
action of secretin? - Answer✔stimulates pancreatic secretion of bicarb inhibits gastric emptying
Adult polycystic kidney disease is a/w what other conditions? - Answer✔Associated with: -
polycystic liver disease - berry aneurysms - mitral valve prolapse
adverse effects of protamine? - Answer✔hypotension, anaphylaxis
AJCC staging of sarcomas relies on which factors regarding the tumor? - Answer✔GTNM system
- grade = most important prognosticator - size (T) - nodal involvement (N) - mets (M)
Annular pancreas is a/w what other conditions? - Answer✔40% have duodenal stenosis/atresia
20% have Down's
ANOVA - Answer✔analysis of variables - t-test for >2 samples of quantitative data
antibody produced in ITP is what type? - Answer✔IgG
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Antidiuretic hormone (ADH) is secreted in response to? - Answer✔hypovolemia (most powerful
stimulant) increased serum osmolality
Appearance of cholesterol polyps? - Answer✔Appear as yellow spots on gallbladder mucosa
appearance of duodenal atresia on plain film? - Answer✔double bubble sign due to gastric
bubble + bubble bounded by pylorus and obstruction
Appropirate crystalloid bolus for treating shock in an infant - Answer✔20 cc/kg
Appropriate fluid bolus for resuscitating a pediatric patient? - Answer✔premature and infants <
1.5 kg: 150 cc/kg neonates and infants 1.5 - 10kg: 100 cc/kg for 1st 10 kg infants and children
10-20kg: 50 cc /kg per kg over 10 kg children > 20 kg: 1
Appropriate mgt of choledochal cysts? - Answer✔excision with clean margins biliary drainage
with Roux-en-Y NOTE: some will treat type II with excision and reconstruction of bile duct wall
Are chemotherapeutics for breast cancer safe during pregnancy? - Answer✔Agents most
commonly used in initial management are relatively safe during 2nd/3rd trimester - safe:
cyclophosphamide
Are femoral hernias medial or lateral to the femoral vein? - Answer✔medial
are insulinomas usually malignant or benign? - Answer✔> 95% are benign
are patients with Hashimoto's at increased risk for thyroid malignancy? - Answer✔slightly
increased risk for malignancy (thyroid lymphoma) - no increased risk for other thyroid cancers
Are patients with Hashimoto's hypothyroid - Answer✔euthyroid
Are pediatric inguinal hernias usually direct or indirect? - Answer✔almost always indirect
Are Peutz-Jeghers polyps premalignant? What is the mgt of Peutz-Jegher pts? - Answer✔NO
Are pheochromocytomas tumors of the adrenal cortex or medulla? - Answer✔tumors of
adrenal medulla
Are proton-pump inhibitors a/w carcinoid tumors? - Answer✔NO
Are the renal pelvices anterior or posterior to renal arteries? - Answer✔renal pelvices are
posterior to renal arteries
At what age does pyloric stenosis usually first manifest? - Answer✔at 3 to 12 weeks of age
starts with nonbilious vomiting which eventually becomes projectile
At what age(s) does gynecomastia usually occur? - Answer✔Occurs during three phases of life
At what compartment pressure is a fasciotomy indicated? - Answer✔May be needed for
compartment pressures > 30 mm Hg - 30-45 watch carefully - greater than 45 usually needs
intervention
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At what joints does Dupuytren's contracture develop? - Answer✔MCP and PIP joints - begins as
nodule formation/proliferation of palmar fascia
At what pO2 is hemoglobin 50% saturated under normal conditions? - Answer✔27
At what point in the cell cycle do most chemotherapeutics act? - Answer✔S phase
At what point in the respiratory cycle do you measure PCWP? - Answer✔on mechanical
ventilation: at bottom of waveform (end-expiration) spontaneously respiring: at top of
waveform (end-inspiration) The idea is to eliminate intra-thoracic pressure as a confounding
factor.
at what point in the trachea does the recurrent laryngeal nerve enter? - Answer✔at the
cricothyroid articulation
at what size should an asymptomatic popliteal aneurysm be repaired? - Answer✔at greater
than 2 cm
At what spinal level does the spinal artery of Adamkiewicz usually arise? - Answer✔T9-T12
at what vertebral level are found the cardiac accelerator fibers? - Answer✔T1-T4 - can be hit
with thoracic epidurals note: MSO4 epidurals have wider "spread" than Fentanyl
ATPs from anaerobic glycolysis - Answer✔2 and 1 lactate
ATPs from Kreb's cycle - Answer✔38 from 1 glucose
Average age at diagnosis of LCIS? - Answer✔44-47 - two thirds of patients are pre-menopausal
Average time lapse between radiation treatment for breast cancer and presentation of
radiation-induced sarcoma? - Answer✔10 years - recurrences after this much time should be
considered with high suspicion for sarcoma rather than primary lesion
bacteria implicated in Fournier's gangrene? - Answer✔Bacteroides
best method for biopsy of a melanoma? - Answer✔full-thickness biopsy - important to be able
to gauge the thickness of the tumor in order to stage accurately
best serum test to assess recurrence in a medullary thyroid patient? - Answer✔pentagastrin-
stimulated calcitonin
Best test for distinguishing ATN from prerenal azotemia? - Answer✔fractional excretion of
sodium
best therapy for colon mass identified during routine cholecystectomy? - Answer✔complete
procedure
Difference between omphalocele vs. gastroschisis - Answer✔...
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