01Approach to the Critical Patient/attcp64

Immediate priorities

›Airway, breathing, and hemodynamic stabilization

›Immediate high-acuity triggers

›Diffuse abdominal rigidity

›Rebound tenderness

›Absent bowel sounds

›Fever with tachycardia

›Hypotension

›Altered mental status

›Sepsis and shock recognition

›Fecal peritonitis as source of septic shock

›Early broad-spectrum antibiotics for suspected perforation

›Crystalloid resuscitation to hemodynamic targets

›Access and monitoring

›Two large-bore IV lines for suspected perforation or planned sedation

›Cardiac monitor

›Continuous pulse oximetry

›Blood pressure cycling

›Analgesia without delay

›Pain control initiated before full workup complete

›Serial abdominal exam paired with any opioid dosing

High-risk object and perforation recognition

›Object-risk stratification

›Sharp or fragile object

›Glass

›Metal with sharp edges

›Light bulb

›Object above the rectosigmoid junction

02History/hx72

Confidential, non-judgmental history-taking

›Private, non-judgmental interview approach

›History obtained without accompanying persons present when appropriate

›Neutral, matter-of-fact language avoiding moral framing

›Explicit reassurance of confidentiality and non-judgment

›Direct driver of disclosure accuracy and timely presentation

›Chaperone availability offered for anorectal examination

›Barriers to accurate disclosure

›Embarrassment

›Fear of legal or social consequences

›Prior negative healthcare experiences

›Underreporting of true time since insertion

Object and insertion characterization

›Object description

›Shape

›Rounded

›Elongated or cylindrical

›Material

›Glass

›Plastic

›Wood

›Metal

›Sharp versus blunt edges

›Size estimate

›Diameter

›Length

›Single versus multiple objects

›Sealed container or bottle

03Physical Exam/exam35

Systemic and abdominal exam

›Vital signs

›Heart rate

›Blood pressure

›Temperature

›Respiratory rate

›Abdominal findings

›Distension

›Focal or diffuse tenderness

›Guarding

›Rebound tenderness

›Bowel sounds

›Perfusion and shock markers

›Capillary refill

›Altered mental status

›Cool extremities

Anorectal and perianal exam

›Perianal inspection

›Visible object at the anal verge

›Laceration or mucosal tear

›Active bleeding

›Perianal soiling

›Digital rectal exam

›Sphincter tone

›Object palpability and estimated level

›Blood on examining finger

›Caution with suspected sharp object

›Risk of examiner or patient injury on palpation

04Differential Diagnosis/ddx20

Life-threatening and mimics

›Perforation and its consequences

›Rectosigmoid perforation with fecal peritonitis

›Retroperitoneal perforation with extraluminal air tracking

›Pelvic abscess formation

›Anorectal pathology mimics

›Thrombosed external hemorrhoid

›Anal fissure

›Perianal or perirectal abscess

›Rectal prolapse

›Anorectal malignancy

›Related foreign body presentations

›Ingested foreign body migrated distally to the rectum

›Fecal impaction misidentified as a foreign object

›Retained enema or medical device fragment

Coding considerations

›ICD-10 and SNOMED CT alignment

›ICD-10 T18.5XXA foreign body in anus and rectum, initial encounter

›ICD-10 K60.2 anal fissure

›ICD-10 K61.0 perianal abscess

›ICD-10 K62.3 rectal prolapse

›SNOMED CT foreign body in rectum

05Laboratory Tests/lt22

Baseline and complication labs

›Targeted laboratory evaluation

›Complete blood count for fever, toxicity, or bleeding

›Leukocytosis supporting perforation or abscess

›Hemoglobin trend for significant rectal bleeding

›Lactate mmol/l for suspected perforation or sepsis

›Elevation supporting hypoperfusion or ischemia

›Basic metabolic panel for dehydration and pre-sedation status

›Type and screen for significant hemorrhage or planned operative intervention

›Coagulation studies if anticoagulated or planned high-risk removal or surgery

›INR for warfarin exposure

›Anti-Xa level availability dependent for factor Xa inhibitors

›Venous blood gas for systemic toxicity or septic shock

›pH

›pCO2 mmHg

›Suspected drug package

›Bedside glucose for altered mental status

›Targeted toxicology evaluation for a specific suspected agent

›Limited utility for immediate management decisions

PITFALLS

›Limitations

›Normal white cell count does not exclude early perforation

›Normal lactate does not exclude a contained perforation

›Elevated lactate from pain and vagal response can mimic ischemia and should prompt re-examination rather than reflexive escalation

06Diagnostic Tests/dt62

Scoring Systems

›Decision framework

›Perforation-risk classification

›High risk

›Free air on imaging

›Peritoneal signs

›Sepsis physiology

›Intermediate risk

›Sharp or fragile object

›Object above the rectosigmoid junction

›Prolonged time since insertion

›Lower risk

›Smooth, blunt, low-lying object

›Short interval since insertion

›Reassuring abdominal and rectal exam

›Extraction-approach classification

›Bedside transanal extraction candidate

›Examination under anaesthesia candidate

›Primary operative candidate

Plain radiography

›X-ray strategy

›Two-view principle

›Supine abdominal view

›Upright or lateral decubitus view for free air

›Interpretation targets

›Object location, number, orientation

›Relationship to the rectosigmoid junction

›Free intraperitoneal or extraluminal air

07Disposition/dispo26

Level of care and admission

›Admission and monitored care

›ICU or step-down triggers

›Septic shock

›Hemodynamic instability

›Significant hemorrhage

›Inpatient admission triggers

›Confirmed or suspected perforation

›Operative intervention or examination under anaesthesia performed

›Suspected drug package pending removal or observed passage

›Significant mucosal injury on post-extraction endoscopy

Transfer criteria

›Facility capability gaps

›No surgical or colorectal surgery coverage

›No anesthesia support for examination under anaesthesia

›No endoscopic capability for post-extraction assessment when indicated

›Transfer timing

›Free air or peritonitis transferred for operative management without delay for bedside extraction attempts

›Object above the rectosigmoid junction transferred when local surgical or endoscopic capability unavailable

Discharge criteria and follow-up

›Discharge criteria

›Successful extraction with no mucosal injury on assessment

›Reassuring observation period

›No peritoneal signs

›Reliable return precautions

›Follow-up planning

›Colorectal or general surgery follow-up after significant mucosal injury

›Mental health or social work follow-up when insertion reflects psychiatric illness, coercion, or repeated episodes

08Treatment/t136

Initial stabilization, analgesia, and sedation

›Supportive care

›NPO status if procedural sedation or operative intervention anticipated

›IV access before analgesia or sedation

›Position of comfort while awaiting extraction plan

›Analgesia

›Fentanyl IV 25 to 50 micrograms

›Titration every 5 to 10 minutes to comfort and respiratory safety

›Maximum initial titration total 200 micrograms before reassessment

›Acetaminophen IV or PO 1000 mg

›Interval every 6 hours

›Maximum daily dose 4000 mg

›Analgesia should not be withheld pending diagnosis

›Paired with serial abdominal exam to avoid masking evolving peritonism

Extraction approach: stepwise progression

›Adequate analgesia and sedation before any attempt

›Procedural sedation

›Ketamine IV 0.5 to 1 mg/kg

›Titration in 0.25 mg/kg increments every 5 to 10 minutes

›Maximum total dose 2 mg/kg for the procedure

›Midazolam IV 1 to 2 mg

›Titration every 2 to 3 minutes

›Maximum total dose 5 mg unless deeper sedation specifically planned

›Local anesthetic infiltration

›Lidocaine 1 percent perianal infiltration up to 4.5 mg/kg

›Maximum single dose 300 mg without epinephrine

›Positioning

›Lithotomy position

›Left lateral (Sims) position as an alternative

›Trendelenburg positioning to assist gravity-aided descent of a higher-lying object

›Anal sphincter relaxation

›Pharmacologic relaxation from procedural sedation

›Topical anal sphincter relaxant as an adjunct

›Bimanual abdominal-perineal technique to guide a higher object toward the anal canal

›Visualization

›Anal retractor or bivalve speculum for direct visualization

›Adequate lighting and suction available

Low-lying object techniques and adjuncts

›Direct grasping technique

›Ring forceps or obstetric forceps under direct vision

›Object oriented to its narrowest diameter before traction

›Gentle, steady traction synchronized with relaxation

›Vacuum-effect objects

›Foley catheter passed alongside or beyond the object

›Balloon inflated beyond the object

›Air or saline instilled behind the object to break the suction seal

›Gentle traction on the object once the seal is released

›Adjunct maneuvers

›Valsalva maneuver by the patient synchronized with traction

›Obstetric vacuum device for selected smooth objects

›Generous lubrication throughout

›Attempt limits

›If two to three well-positioned attempts fail to advance or grasp the object, stop

›Escalate rather than repeat forceful attempts

›Reassess for new pain, bleeding, or peritoneal signs before any further attempt

Escalation: examination under anaesthesia and laparotomy

›Escalation triggers

›Failed bedside extraction after a limited number of well-executed attempts

›Object above the rectosigmoid junction not amenable to transanal retrieval

›Sharp or fragile object with injury risk on transanal traction

›New mucosal injury or bleeding during an attempt

›Patient intolerance despite adequate sedation

›Examination under anaesthesia

›Deeper anesthesia allowing full sphincter relaxation

›Endoscopic or laparoscopic-assisted transanal retrieval

›Colonoscopic retrieval for an object reachable endoscopically

›Laparotomy

›Transabdominal manual milking of the object toward the anus

›Colotomy with direct object removal if milking fails

›Immediate laparotomy without transanal attempts for free air or peritonitis

Suspected drug package management

›Recognition

›Latex or condom-wrapped parcel appearance on exam or imaging

›History consistent with body packing or body stuffing

›Extraction restrictions

›Manual or instrumented extraction is not performed

›Rupture risk with fatal toxicity

›Enemas and laxatives are not used to hasten passage

›Rupture risk from increased intraluminal pressure and peristaltic shear

›Definitive management pathway

›Asymptomatic patient with an intact package on imaging

›Observation with monitored spontaneous passage

›Serial abdominal exams and toxidrome monitoring

›Signs of package leak or rupture

›Immediate surgical removal

›Treat the resulting toxidrome per the specific agent

›Activated charcoal not given

›Ineffective for a packaged parcel

›Aspiration risk

›Whole bowel irrigation avoided when rupture risk is a concern

Post-extraction assessment, antibiotics, and tetanus

›Post-extraction assessment

›Proctoscopy or sigmoidoscopy to exclude mucosal injury

›Laceration

›Perforation

›Active bleeding

›Observation period

›4 to 6 hours of serial abdominal exams

›Repeat imaging if new or worsening pain develops

›Antibiotics

›Not routinely required after an uncomplicated, atraumatic extraction

›Broad-spectrum antibiotics for mucosal injury, contamination, or suspected perforation

›Piperacillin-tazobactam IV 4.5 g every 6 hours

›Renal dosing adjustments as indicated

›Alternative for severe penicillin allergy

›Ceftriaxone IV 2 g daily plus metronidazole IV 500 mg every 8 hours

›Tetanus prophylaxis

›Vaccination status review

›Tetanus toxoid-containing vaccine if mucosal breach and immunization status incomplete or unknown

›Tetanus immune globulin considered for a heavily contaminated wound with uncertain immunization history

Iatrogenic harm avoidance

›Intubation

›Not routinely required

›Standard rapid sequence precautions apply if needed for septic shock or operative airway

›Sedation

›Can mask evolving peritoneal signs

›Serial abdominal exam mandatory after any sedated attempt

›Fluid loading

›No specific contraindication

›Standard sepsis resuscitation targets if peritonitis present

›Oxygen

›Supplemental oxygen for hypoxemia during sedation

›Vasopressors

›Standard first-line agent for septic or hemorrhagic shock from perforation

›Mechanical circulatory support including intra-aortic balloon pump

›Not applicable to this condition

›Anticoagulation

›Bleeding-risk modifier for extraction and surgery

›Assess anticoagulant status before instrumentation

›Consider reversal for significant bleeding or planned operative intervention

›Fibrinolysis

›Relatively contraindicated for an unrelated indication in the presence of active or recent instrumentation, or suspected perforation

›Hemorrhage risk

›Analgesia

›Should not be withheld pending diagnosis

›Paired with serial abdominal exam so pain control does not delay recognition of perforation

›Enema misuse

›Phosphate-containing enema avoided for a retained rectal object

›Risk of severe hyperphosphatemia and hypocalcemia

›ECG monitoring for QT prolongation if inadvertently administered

›Blind instrumentation

›Improvised or makeshift grasping tools cause mucosal injury and perforation

›Repeated blind probing on a devitalized bowel wall can convert a contained injury into free perforation

09Special Populations/sp32

Pregnancy

›Pregnancy-specific considerations

›Imaging selection

›Plain radiographs with abdominal shielding when feasible

›CT reserved for suspected perforation or life-threatening complication

›Sedation and positioning

›Obstetric consultation for viable gestation when procedural sedation is planned

›Left lateral tilt positioning to avoid aortocaval compression

›Surgical involvement

›Lower threshold for early surgical consultation

›Obstetric involvement for any operative intervention

Geriatric

›Older adult considerations

›Atypical or blunted presentation

›Minimal reported pain despite significant injury

›Delayed presentation compounded by cognitive impairment

›Comorbidity and anticoagulation

›Bleeding risk with mucosal trauma

›Coagulation assessment when high-risk removal is anticipated

›Frailty and physiologic reserve

›Lower threshold for admission after any operative or endoscopic intervention

Pediatrics

›Pediatric considerations

›Non-accidental injury and abuse evaluation

›High suspicion for sexual abuse in a young child with a rectal foreign body

›Developmentally implausible or inconsistent history

›Mandatory reporting per local jurisdiction

›Forensic pediatric examination and child protection involvement

10Background/b34

Epidemiology

›Epidemiologic features

›Male patients account for the large majority of presentations, roughly 80 to 90 percent in case series

›Bimodal age distribution

›Young to middle-aged adults, predominantly from sexual insertion practices

›Older adults, more often from accidental or non-sexual mechanisms

›Presentation delay

›Delay of hours to several days is common

›Delay reported as long as a week in some series

›Bedside extraction success

›Successful in roughly 60 to 80 percent of ED presentations

›The remainder require examination under anaesthesia or operative removal

›Perforation at presentation

›Reported in a minority of cases, roughly 10 percent or fewer across series

Pathophysiology

›Mechanisms of injury

›Direct mucosal trauma from a sharp or fragile object

›Pressure necrosis from prolonged retention

›Ischemic bowel wall predisposed to perforation with further manipulation

›Vacuum effect from a sealed container

›Mucosal congestion and injury from sustained suction

›Chemical injury from a leaking battery or corrosive contents

›Rectosigmoid anatomy as a determinant of accessibility

›Rectosigmoid junction approximately 15 cm from the anal verge

›Objects proximal to this level less accessible to transanal retrieval

›Complication pathways

›Perforation to fecal peritonitis

›Pelvic abscess formation

11Patient Discharge Instructions/pdi20

copy discharge instructions

›Discharge counseling

›Expected course

›Mild anorectal discomfort for a few days is common

›Gradual return to normal bowel habits

›Medications

›Acetaminophen PO 1000 mg every 6 hours as needed, maximum 4000 mg daily

›Stool softener if straining is a concern

›Return to ED immediately

›Worsening or new severe abdominal pain

›Fever

›Significant rectal bleeding

›Inability to pass stool or gas

›Dizziness or fainting

›Follow-up

›Colorectal or general surgery follow-up if mucosal injury was documented

›Primary care follow-up for recurrent episodes or underlying risk factors

Follow-up and support planning

›Support resources

›Mental health referral when insertion reflects psychiatric illness or self-harm context

›Safeguarding and advocacy referral for suspected coercion or assault

›Confidential contact information for follow-up questions

12References/r13

Guidelines and key sources

›Professional society and clinical guidance

›ASGE guidance on management of ingested and retained gastrointestinal foreign bodies

›Endoscopic and surgical escalation pathways applicable to rectal foreign bodies

›American Society of Colon and Rectal Surgeons clinical guidance on rectal foreign bodies

›Extraction technique and operative escalation criteria

›Toxicology guidance

›Clinical toxicology guidance on body packing and body stuffing management

›Expectant management versus surgical removal criteria

Clinical review topics

›Emergency medicine review literature

›Rectal foreign body extraction technique reviews

›Foley catheter vacuum-release technique for sealed containers

›Case series on rectal foreign body presentation and outcomes

›Perforation rates and predictors of failed bedside extraction

Evidence & Review

Evidence & Review