All EMS presentations
General MedicalClinical presentation

Medical device / line problem

A streamlined, differential-led presentation for rapid clinical review.

Clinical snapshot

Twenty-second review

  • Lines, tubes, pumps, drains, catheters, and implanted devices can fail through displacement, blockage, leak, bleeding, infection, or programming error.
  • Airway or feeding-tube displacement with aspiration, line hemorrhage, pump interruption of critical medication, sepsis, or device-related shock is high risk.
  • Keep underlying disease progression in the differential; overlapping or concurrent illness remains possible.
  • For medical device / line problem, trends and combinations of findings are more informative than one isolated vital sign.
Differentials

Compare the clinical patterns

The repeated material is grouped inside each possibility. Open only the condition you need.

Serious3 conditions
Device-related infectionTime-sensitive high-risk possibility

HPI

Clarify device type and purpose; dislodged, blocked, leaking or bleeding; when did problem start.

Signs & symptoms

Systemic illness, bleeding, or rapid physiological change.

Focused exam

Perform a targeted cardiorespiratory, neurologic, abdominal, skin, and hydration assessment guided by the history; Assess function against baseline rather than relying on a single normal-looking measurement.

Brief pathophysiology

Device-related infection may cause medical device / line problem through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

General medical differentials have overlapping physiology. These four observations screen for deterioration and common reversible causes without implying a diagnosis.

Respiratory rate (breaths/min)

Trend rate / effort

Respiratory rate can reveal early physiologic stress.

Blood pressure (mmHg)

Compare with baseline

Relative hypotension may be important before an absolute threshold is crossed.

Heart rate (bpm)

Trend rate / rhythm

Interpret with hydration, perfusion, medications, and symptoms.

Blood glucose (mmol/L)

Check when indicated

Glucose disturbance can cause weakness or altered mentation.

Front-load in the triage report

  • Device-related infection: Systemic illness, bleeding, or rapid physiological change.
  • Device type and purpose?
  • Dislodged, blocked, leaking or bleeding?
HemorrhageTime-sensitive high-risk possibility

HPI

Clarify dislodged, blocked, leaking or bleeding; when did problem start; signs of infection.

Signs & symptoms

Systemic illness, bleeding, or rapid physiological change.

Focused exam

Assess function against baseline rather than relying on a single normal-looking measurement; Identify device and purpose, inspect position and site, compare with baseline function, check alarms and connections without unsafe manipulation, and assess downstream effects.

Brief pathophysiology

Hemorrhage may cause medical device / line problem through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Hemorrhage: Systemic illness, bleeding, or rapid physiological change.
  • Dislodged, blocked, leaking or bleeding?
  • When did problem start?
Interruption of life-sustaining therapyTime-sensitive high-risk possibility

HPI

Clarify when did problem start; signs of infection; what has been attempted.

Signs & symptoms

Systemic illness, bleeding, or rapid physiological change.

Focused exam

Assess function against baseline rather than relying on a single normal-looking measurement; Identify device and purpose, inspect position and site, compare with baseline function, check alarms and connections without unsafe manipulation, and assess downstream effects.

Brief pathophysiology

Interruption of life-sustaining therapy may cause medical device / line problem through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

General medical differentials have overlapping physiology. These four observations screen for deterioration and common reversible causes without implying a diagnosis.

Respiratory rate (breaths/min)

Trend rate / effort

Respiratory rate can reveal early physiologic stress.

Blood pressure (mmHg)

Compare with baseline

Relative hypotension may be important before an absolute threshold is crossed.

Heart rate (bpm)

Trend rate / rhythm

Interpret with hydration, perfusion, medications, and symptoms.

Blood glucose (mmol/L)

Check when indicated

Glucose disturbance can cause weakness or altered mentation.

Front-load in the triage report

  • Interruption of life-sustaining therapy: Systemic illness, bleeding, or rapid physiological change.
  • When did problem start?
  • Signs of infection?
Common2 conditions
Mechanical blockageCommon presentation pattern

HPI

Clarify device type and purpose; dislodged, blocked, leaking or bleeding; when did problem start.

Signs & symptoms

Visible displacement, alarm, leakage, or loss of expected output may fit.

Focused exam

Perform a targeted cardiorespiratory, neurologic, abdominal, skin, and hydration assessment guided by the history; Assess function against baseline rather than relying on a single normal-looking measurement.

Brief pathophysiology

Mechanical blockage may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

General medical differentials have overlapping physiology. These four observations screen for deterioration and common reversible causes without implying a diagnosis.

Respiratory rate (breaths/min)

Trend rate / effort

Respiratory rate can reveal early physiologic stress.

Blood pressure (mmHg)

Compare with baseline

Relative hypotension may be important before an absolute threshold is crossed.

Heart rate (bpm)

Trend rate / rhythm

Interpret with hydration, perfusion, medications, and symptoms.

Blood glucose (mmol/L)

Check when indicated

Glucose disturbance can cause weakness or altered mentation.

Front-load in the triage report

  • Visible displacement, alarm, leakage, or loss of expected output may fit.
  • Device type and purpose?
  • Dislodged, blocked, leaking or bleeding?
DisconnectionCommon presentation pattern

HPI

Clarify dislodged, blocked, leaking or bleeding; when did problem start; signs of infection.

Signs & symptoms

Visible displacement, alarm, leakage, or loss of expected output may fit.

Focused exam

Assess function against baseline rather than relying on a single normal-looking measurement; Identify device and purpose, inspect position and site, compare with baseline function, check alarms and connections without unsafe manipulation, and assess downstream effects.

Brief pathophysiology

Disconnection may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

General medical differentials have overlapping physiology. These four observations screen for deterioration and common reversible causes without implying a diagnosis.

Respiratory rate (breaths/min)

Trend rate / effort

Respiratory rate can reveal early physiologic stress.

Blood pressure (mmHg)

Compare with baseline

Relative hypotension may be important before an absolute threshold is crossed.

Heart rate (bpm)

Trend rate / rhythm

Interpret with hydration, perfusion, medications, and symptoms.

Blood glucose (mmol/L)

Check when indicated

Glucose disturbance can cause weakness or altered mentation.

Front-load in the triage report

  • Visible displacement, alarm, leakage, or loss of expected output may fit.
  • Dislodged, blocked, leaking or bleeding?
  • When did problem start?
Mimics1 condition
Underlying disease progressionImportant alternative presentation

HPI

Clarify device type and purpose; dislodged, blocked, leaking or bleeding; when did problem start.

Signs & symptoms

Symptoms may not be caused by the device itself.

Focused exam

Perform a targeted cardiorespiratory, neurologic, abdominal, skin, and hydration assessment guided by the history; Assess function against baseline rather than relying on a single normal-looking measurement.

Brief pathophysiology

Underlying disease progression can resemble medical device / line problem through overlapping symptoms or referred physiology despite a different primary mechanism.

Vital-sign pattern

What the trend may show

Possible pattern

General medical differentials have overlapping physiology. These four observations screen for deterioration and common reversible causes without implying a diagnosis.

Respiratory rate (breaths/min)

Trend rate / effort

Respiratory rate can reveal early physiologic stress.

Blood pressure (mmHg)

Compare with baseline

Relative hypotension may be important before an absolute threshold is crossed.

Heart rate (bpm)

Trend rate / rhythm

Interpret with hydration, perfusion, medications, and symptoms.

Blood glucose (mmol/L)

Check when indicated

Glucose disturbance can cause weakness or altered mentation.

Front-load in the triage report

  • Symptoms may not be caused by the device itself.
  • Device type and purpose?
  • Dislodged, blocked, leaking or bleeding?
Red flags

Findings that should escalate concern

  • Airway or feeding-tube displacement with aspiration, line hemorrhage, pump interruption of critical medication, sepsis, or device-related shock is high risk.
  • Device-related infection, hemorrhage, or interruption of life-sustaining therapy: Systemic illness, bleeding, or rapid physiological change.
Related medications

Medication recognition

AmoxicillinApixabanRivaroxabanClopidogrelCephalexinWarfarin
Related EMS presentations

Continue the clinical pathway

InfectiousSuspected sepsisGU/RenalDialysis complicationGeneral MedicalTransplant patient complicationGeneral MedicalPost-operative concernGeneral MedicalMedication side effect / adverse reaction
References

Clinical and academic sources

Curated clinical guidance and peer-reviewed evidence supporting this presentation. Current BCEHS guidance, medical direction, and local policy remain authoritative for practice.

BCEHS Handbook — specific CPGs

  1. A02: Patient AssessmentBC Emergency Health Services Handbook

    Official BCEHS clinical practice guidance for patient assessment.

Supporting clinical and academic evidence

  1. CEDIS Presenting Complaint List updateCanadian Association of Emergency Physicians

    Presenting-complaint terminology and categorization context. It does not establish a prehospital “top 100” ranking.

  2. WHO Medical Emergency ChecklistWorld Health Organization

    A structured emergency assessment framework intended to reduce missed life-threatening conditions.

  3. Complication Rates of Central Venous Catheters: A Systematic Review and Meta-AnalysisJAMA Internal Medicine · 2024

    Mechanical, infectious, thrombotic, and bleeding complications of central venous devices.