Functional GI Disorders

The answer first

Functional GI Disorders is managed with an answer-first physician approach: recognise the pattern, exclude dangerous differentials, choose investigations that change action, and deliver a sequenced management plan that accounts for multimorbidity. [1] [2]

The FRACP candidate must be able to open a long-case presentation, defend thresholds, and answer DWE vignettes without hedging. Lead with the decision, then the evidence and the trap. [1]

Clinical spectrum and red flags

Presentations range from incidental or outpatient findings to emergency decompensation. Always ask what would make this urgent today — airway, perfusion, neurological threat, metabolic crisis, infection, or bleeding. [1] [2]

Red flags force same-day action rather than elective pathways. Document them explicitly in the plan. [1]

Classification that changes management

Classify by acuity, mechanism, severity and care setting. A useful classification changes investigation choice, initial therapy, disposition or specialist referral — otherwise it is taxonomy without purpose. [1] [2]

Pathophysiology linked to bedside decisions

Mechanism matters when it predicts treatment response, complications or monitoring. Teach pathophysiology as a bridge to action, not as isolated basic science. [1] [2] [3]

Differentials and discrimination

Build a short differential that includes the common, the dangerous and the commonly missed. For each alternative, name one history clue, one examination clue and one investigation that discriminates. [1] [2]

Investigations

Order tests that change management. State what is required now, what can wait, and what is low-value or harmful. Interpret results in clinical context rather than in isolation. [1] [2]

Management — immediate then definitive

1. Stabilise threats to life and organ function. [1]
2. Start disease-specific therapy once the working diagnosis is secure enough to act. [1] [2]
3. Address complications, drug interactions and monitoring. [1] [2]
4. Plan disposition, follow-up intensity and patient education with safety-net advice. [1]

Complications and prognosis

Anticipate early and late complications. Prognosis depends on severity at presentation, speed of effective therapy, comorbidity and adherence to secondary prevention or disease-modifying treatment. [1] [2]

Special populations and multimorbidity

Adjust for pregnancy potential, frailty, CKD, liver disease, immunosuppression and polypharmacy. In older adults, goals-of-care and treatment burden can change the preferred plan even when disease-directed options remain available. [1] [2]

DCE long-case angles

Open with a one-sentence synthesis, then a prioritised problem list, then an integrated plan covering investigations, treatment, prevention and communication. Link Functional GI Disorders to cardiovascular risk, infection risk, medications and social context where relevant. [1] [2]

DCE short-case angles

Be prepared to demonstrate or discuss focused examination findings, interpret a key investigation, and counsel on risks, benefits and follow-up in plain language. [1]

Exam traps

1. Delaying urgent care because the presentation looks "stable enough". [1]
2. Treating a syndrome label without confirming mechanism. [1] [2]
3. Forgetting drug interactions and organ-function dosing. [1] [2]
4. Omitting safety-net advice and follow-up ownership. [1]
5. Quoting thresholds without knowing the source trial or guideline. [1] [2] [3]

References

1. [1]Berschback M, Varayil JE, Stout J Malnutrition and Sarcopenia in Gastrointestinal Motility Disorders: Mechanisms, Assessment, and Management Curr Gastroenterol Rep, 2026.PMID 42467137
2. [2]Bananis K, Mor R, Voros C, Gandhi R, et al. Bariatric Surgery as a Bridge to Kidney Transplantation in Patients with Obesity and Advanced Chronic Kidney Disease or End-Stage Renal Disease: A Systematic Review Obes Surg, 2026.PMID 42463851
3. [3]Zhang H, Adjah J, Kapse B, Affinass N, et al. Differential generation of parasite-specific Th2 and T follicular helper cells distinguishes resistant and susceptible mouse strains Front Immunol, 2026.PMID 42459657
4. [4]Votto M, Olcese R, De Filippo M, Caminiti L, et al. Gastrointestinal manifestations during oral immunotherapy: A guide for pediatric allergists Pediatr Allergy Immunol, 2026.PMID 42430571
5. [5]Takahashi H, Dehal A, In H, Kwon S, et al. Biomarker-Driven Management of Nonmetastatic GEJ Adenocarcinoma Ann Surg Oncol, 2026.PMID 42141340
6. [6]Giustina A, di Filippo L, Fleseriu M, Pivonello R, et al. Consensus on acromegaly complications: an update Pituitary, 2026.PMID 42050227
7. [7]Doan HN, Chang MC Comparative Effectiveness of Unstable Versus Stable Resistance Training on Lower Limb Strength, Mobility, and Fear of Falling in Older Adults: A Systematic Review and Meta-analysis of Randomized Controlled Trials Am J Phys Med Rehabil, 2026.PMID 42468010
8. [8]Liu HW, Tsai TL Virtual Reality-assisted Physiotherapeutic Training for Patients With Knee Osteoarthritis: A Systematic Review and Meta-analysis Am J Phys Med Rehabil, 2026.PMID 42468005
9. [9]Osborne AK, Brown RD, Sillence E Effects of Social Media Narratives on Affective and Behavioral Responses to Menopause Content: Randomized Online Experimental Study JMIR Form Res, 2026.PMID 42467962
10. [10]Khial Y, Lathief S, Aliwi L, Alqashouti S, et al. Dietary patterns, gut microbiota, and gastrointestinal disorders: mechanistic insights into irritable bowel syndrome and inflammatory bowel disease Rev Environ Health, 2026.PMID 42448648
11. [11]Ghodsi O, Ghasemi A, Ahangari S The role of von Willebrand factor in gastrointestinal angiodysplasia and obscure gi bleeding: a narrative review Hematology, 2026.PMID 42441570
12. [12]Sozzi M, Siboni S, Latorre-Rodriguez AR, Mittal SK, et al. Inter-Observer Variability of Gerd-Related Metrics on High-Resolution Manometry and Calculation of the Milan Score Neurogastroenterol Motil, 2026.PMID 42458701