BROOKE HARBOR HEALTH SYSTEM INTRANET ALL TRAINING SYSTEMS OPERATIONAL
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Brooke Harbor Health System

PMHNP Clinical Learning Environment

TRAINING ENVIRONMENTFictional educational health system · No real patient data

Specialty Practice Area

Specialty Practice GuideGuidance for a population, acuity, or practice context.

Psychiatric–Medical and Neurologic Overlap

Population, setting, access, comorbidity, and baseline function shape how psychiatric and physical conditions present together. This guide focuses on adapting the differential and care plan across those contexts; use the Toolbox's Ruling Out Medical Causes guide for red flags, testing decisions, and workup mechanics.

Clinical application

Using this resource

Apply these prompts within the simulated clinical context. They support—but do not replace—clinical judgment, supervision, consultation, current guidance, local policy, law, or emergency procedures.

Use this when

  • Psychiatric and physical findings overlap, and an unresolved cross-system question could change diagnosis, treatment, monitoring, or follow-up.

Clarify first

  • State the decision that must be made, compare current findings with baseline, and identify the psychiatric, medical, neurologic, medication, substance, and contextual explanations still in question.
  • Determine which information is available, what remains pending, and which clinician or service is positioned to address each part of the evaluation.

Act now

  • Coordinate the focused assessment and consultation needed for the unresolved question without duplicating work or allowing uncertainty to remain unowned.
  • Integrate new findings into both the psychiatric and medical plan and define when reassessment is needed.

Document and communicate

  • Record the cross-system question, baseline comparison, competing explanations, findings and sources, consultation, shared responsibilities, pending information, and follow-up plan.

Escalate or consult when

  • There is acute instability, changing mental status, concerning neurologic or physiologic findings, severe medication or substance effects, unresolved urgent diagnostic uncertainty, or a setting unable to provide the needed evaluation.

Think across systems

Plan for conditions that cross specialty boundaries

Chronic illness, polypharmacy, disability, pregnancy, immunocompromise, aging, fragmented care, and limited access to specialty services can change the probability of competing diagnoses and the feasibility of follow-up.

Practice context
Outpatient, consultation-liaison, emergency, inpatient, primary care, neurology, and collaborative-care settings
Typical pace
Ranges from immediate escalation for acute red flags to longitudinal diagnostic clarification and coordinated management
Who's involved
People with new, atypical, fluctuating, treatment-resistant, or functionally significant psychiatric symptoms alongside medical, neurologic, medication, or substance concerns

Common presentations

  • Psychiatric illness alongside diabetes, cardiovascular, renal, hepatic, endocrine, infectious, autoimmune, or pain conditions
  • Pregnancy, postpartum changes, aging, disability, or other physiologic contexts that alter presentation and treatment
  • Polypharmacy and treatment plans shared across several specialties
  • Functional symptoms or persistent complaints spanning psychiatric and medical systems
  • Diagnostic overshadowing in people with serious mental illness or developmental disability
  • Fragmented care, limited collateral, or unequal access to diagnostic and specialty services

PMHNP priorities

  • Adjust the differential for age, reproductive status, comorbidity, medications, exposures, disability, and care setting
  • Prevent diagnostic overshadowing by treating new physical or cognitive concerns as findings that deserve evaluation
  • Clarify which clinician owns each medication, test result, referral, and follow-up decision
  • Balance psychiatric benefit with organ function, interaction risk, treatment burden, and patient goals
  • Use collateral and cross-specialty records to reconstruct longitudinal patterns
  • Plan around access, transportation, health literacy, cost, caregiver capacity, and continuity
  • Revisit the formulation when the clinical course does not fit the expected pattern

Care team

PMHNPs, psychiatrists, primary care clinicians, neurologists, emergency and hospital medicine teams, pharmacists, nurses, laboratory and diagnostic services, infectious disease and other medical specialists, rehabilitation clinicians, social workers, and patient-identified supports.

Ruling Out Medical Causes ↗Laboratory & Diagnostic Services ↗Neuropsychiatry & Neurological Presentations ↗
← Specialty Practice AreasRuling Out Medical Causes →
Last updated July 29, 2026