Hippo ERcast June 2025

Colorful Language in the ED

Charting patient threats, sexual comments, and abusive language in the emergency department is a risk-management skill, not just a writing style issue. The safest documentation is factual, clinically relevant, and neutral in tone, especially when behavior affects staff safety, disposition, or future care. Documenting Threatening Patient Language Neutral tone standard: Neutral, descriptive language protects credibility better than sarcasm or editorializing, because a jury may read flattering or ironic phrasing as mockery rather than objective documentation. Behavior over verbatim quotes: The chart should capture the patient’s intent and the clinical context, using direct quotes selectively when they meaningfully clarify threatening, sexual, or abusive behavior. Clinical relevance filter: Document details that change care, inform staff safety, or warn future clinicians about escalating behavior; leave out inflammatory material that does not move management forward. Threats to sue exclusion: Statements about lawsuits generally add no medical value and may create avoidable legal exposure, so the better practice is to omit them and keep the note focused on care. Staff safety signaling: Episodes of incivility and verbal abuse belong in the record when they help future teams anticipate a potentially difficult or unsafe encounter. We get into the wording nuance in the episode. Read-it-in-court test: A useful charting check is whether you would be comfortable reading the note aloud in court, which quickly exposes jokes, personal tells, and other credibility-eroding phrasing.

Rectal Misadventures

Rectal bleeding and anorectal pain are often benign, but the dangerous misses are colorectal cancer, rectal varices, deeper sepsis, and perforation. Hemorrhoids, perirectal abscesses, and rectal foreign bodies all reward a careful exam and a low threshold to rethink the label when the story does not fit. Hemorrhoids and Rectal Bleeding Supportive care first: Most ED hemorrhoid complaints improve with topical therapy, sitz baths, fiber, and avoiding straining; the key is symptom control while watching for diagnoses masquerading as hemorrhoids. Prolapsing hemorrhoid referral: Prolapsing hemorrhoids usually need definitive surgical management, even when they reduce spontaneously, because they are unlikely to resolve for good on their own. Bleeding after age 35: Rectal bleeding attributed to hemorrhoids in patients 35 and older deserves colonoscopy referral, given the rise in colorectal cancer presenting in the late 30s and 40s. Recurrent visit rethink: Repeated ED visits for supposed hemorrhoids should trigger diagnostic skepticism; portal-hypertension rectal varices can look similar but are managed very differently. We get into the bedside distinctions in the episode. Thrombosed pain curve: A thrombosed external hemorrhoid is essentially a bruise in a bad spot; severe early pain favors clot evacuation, while improving pain can often be managed conservatively. Perirectal Abscess Pearls Drain what you see: A directly visualized perirectal abscess can be incised and drained in the ED, provided the anatomy is clear and the sphincter is respected. Incision close to anus: Place the incision as close to the anus as possible without injuring the sphincter, because a shorter future fistula tract is easier to manage surgically. Loculation breakdown matters: Cotton-swab disruption of loculations plus thorough irrigation improves source control, and an ellipse or cruciate incision helps prevent premature skin closure. Mallecot over packing: If the cavity is large enough to make packing likely, a Mallecot drain can be easier for patients to tolerate and manage after discharge. We walk through where that tradeoff matters in the chapter. Rectal Foreign Body Management Toxicity and perforation screen: The first decision is not extraction technique but whether the patient looks toxic or has signs of ischemic bowel or perforation, which changes the whole pathway. Direct visualization first: Stable patients without perforation signs may be approached with proctoscopy or endoscopy first, because seeing the object often clarifies both feasibility and risk. Foley airlock trick: Passing a Foley beyond the object can break the seal holding it in place, and balloon traction may assist removal when simple grasping fails. Observe after removal: Successful extraction does not end the evaluation when the object is improvised or traumatic-looking; short ED observation helps catch evolving perforation or ischemia. Repeated instrumentation harms: Multiple removal attempts can injure the rectum and contribute to incontinence or prolapse, a complication profile worth keeping in mind before escalating bedside maneuvers.

Lit Matters 1: Decision rules for discharging mild TBI patients

Mild traumatic brain injury is not always a mandatory admission, even in patients on anticoagulants when the initial head CT is negative and the neurologic exam is normal. Positive CT findings are different: early-discharge rules like HSC-DR are highly conservative, with excellent sensitivity but very low yield for sending patients home. ACEP Mild TBI Decision Rules Mild TBI definition: ACEP defines mild traumatic brain injury as GCS 14-15, improving to 15 within 2 hours if initially 14, with or without loss of consciousness, amnesia, or disorientation and presentation within 24 hours. Preferred head CT rule: The Canadian CT Head Rule carries the strongest ACEP endorsement for deciding which adult minor head injury patients need imaging, while NEXUS Head CT and New Orleans Criteria are less specific. Anticoagulation imaging caution: Do not use standard head CT decision tools to rule out imaging in patients taking anticoagulants or antiplatelet agents other than aspirin, because these rules were not built for that risk profile. Single negative CT discharge: For anticoagulated or antiplatelet-treated patients with a normal baseline neurologic exam and no hemorrhage on the initial CT, routine repeat imaging and routine admission are not recommended. Post-concussive risk factors: Female sex, psychiatric history, intoxication, assault mechanism, loss of consciousness, and GCS below 15 all raise concern for prolonged symptoms; we get into the discharge counseling nuances in the episode. Positive CT Discharge Tools HSC-DR clinical target: The Hull Salford Cambridge Decision Rule was built for the harder question: which mild TBI patients with a positive head CT can still be discharged safely rather than admitted for observation. Sensitivity versus usefulness: In CENTER-TBI validation, HSC-DR reached 100% sensitivity for deterioration but identified only 3.5% of patients as safe for discharge, making it reassuring yet operationally limited. BIG comparison signal: BIG criteria discharged more patients than HSC-DR but missed clinically important deterioration in this cohort, a reminder that external validation can look very different from the derivation study. Deterioration outcome meaning: The composite outcome was not trivial observation alone; it included neurosurgical intervention, ICU admission beyond monitoring, intubation, seizure, death, or a documented GCS decline. Current bottom line: Early-discharge rules for CT-positive mild TBI are promising but not mature enough to broadly change practice, and the conservative-versus-practical tradeoff is worth hearing in the chapter.

Geriatric Trauma Pearls

Falls in older adults are usually a geriatric syndrome, not just a simple trip and fall. Geriatric trauma disproportionately means falls, occult hip fracture, clinically important rib injury, and intracranial hemorrhage that cannot be ruled out by exam alone. Falls and injury patterns in older adults Non-syncopal fall framing: Retire the term mechanical fall; non-syncopal fall keeps the differential broad for medication effects, infection, dehydration, vision loss, and other contributors that cluster in geriatric syndrome. Dominant trauma mechanism: Falls account for about 80% of geriatric trauma admissions, and unlike younger trauma populations roughly 70% occurs in women. Three major injury patterns: Geriatric falls classically produce lower-extremity fractures, neck or trunk fractures, and intracranial bleeding, a pattern that sharpens the initial trauma survey. Disposition beyond the fracture: A splinted injury is not the whole problem; mobility at home, medication access, follow-up, and comprehension of instructions often determine whether discharge is actually safe. We get into the practical discharge lens in the episode. High-yield imaging and pain pearls Occult hip fracture clue: A normal hip x-ray does not end the workup; inability to stand or tolerate axial loading should trigger advanced imaging for occult fracture, with MRI the gold standard. Miss rate on x-ray: Plain films miss up to 10% of hip fractures, which is why persistent functional pain after a negative study deserves another look rather than reassurance. CT for rib concern: Chest x-ray is insensitive for rib fractures, and in older adults each additional rib fracture raises pneumonia and mortality risk, so chest CT is the imaging test to favor when suspicion remains. Head bleed threshold: No validated decision rule reliably excludes intracranial hemorrhage after head trauma in older adults, and the baseline risk is higher regardless of anticoagulant use. We walk through the imaging threshold in the episode. Analgesia with restraint: Start pain control low and go slow; acetaminophen is a reasonable opener, fentanyl or morphine are preferred IV opioids, and regional blocks such as fascia iliaca are worth considering in selected patients.

Antivenom

North American pit viper envenomation causes cytotoxic tissue injury, venom-induced coagulopathy, and occasional neuromuscular toxicity. In current U.S. practice, the key antivenom decision is usually CroFab versus Anavip, but earlier antivenom matters more than chasing a specific product. Choosing Between U.S. Antivenoms Two antivenom options: U.S. hospitals now use two crotalid antivenoms: CroFab, an ovine Fab product, and Anavip, an equine F(ab)2 product with different pharmacology and practical strengths. Source venom differences: CroFab is raised against four U.S. native snake venoms, while Anavip uses Bothrops asper and Middle American rattlesnake venom, a detail that helps explain their different performance profiles. Half-life advantage: Anavip has a longer half-life, which makes it better at preventing recurrent coagulopathy after rattlesnake envenomation. We get into how that bedside distinction matters in the episode. Whole-venom neutralization: CroFab appears better at neutralizing whole venom in preclinical data, a physiologic reason it may have an edge when local tissue injury is the dominant problem. Practical product choice: If tissue damage predominates, CroFab may be favored; if coagulopathy predominates, Anavip may be favored, but stocked availability should not delay treatment. Assessing Pit Viper Envenomation Three toxicity domains: Snake envenomation is best framed in three buckets: cytotoxic tissue damage, hematologic toxicity, and neuromuscular effects, each of which changes urgency and follow-up. Tissue injury pattern: Cytotoxic venom causes severe edema, ecchymosis, and hemorrhagic bullae, with swelling that can cross joints and threaten function if treatment is delayed. Consumptive coagulopathy clues: Venom-induced consumptive coagulopathy often looks like DIC without the shower emboli, and toxicology consultants will usually want the platelet count, INR, and fibrinogen up front. Thrombocytopenia phenotype: Venom can produce venom-induced thrombocytopenia through platelet dysfunction and destruction, a separate hematologic pattern from fibrinogen depletion. Neuromuscular red flags: Paresthesias may be the early clue, while severe envenomation can progress to respiratory depression. We cover the red-flag trajectory on the show. What the Evidence Supports CroFab tissue data: A randomized trial in copperhead bites found CroFab improved functional recovery at 14 days versus placebo, though that advantage was not seen by 28 days. Anavip coagulopathy data: A multicenter randomized trial found Anavip reduced recurrent coagulopathy better than Fab antivenom, the finding that largely drove its U.S. adoption. Copperhead subgroup signal: A post hoc copperhead analysis found no meaningful difference in antivenom use between CroFab and Anavip, suggesting similar effectiveness for tissue-focused presentations. Evidence gap caveat: No trial has specifically established Anavip as superior for tissue injury, so confidence is stronger for its coagulopathy benefit than for local wound outcomes. Time over brand preference: The biggest management pearl is not to transfer solely for one antivenom brand; faster antivenom administration matters more than product matching.

Lit Matters 2: Can we discharge mild TBI patients from the ED?

Mild traumatic brain injury is not synonymous with admission, repeat CT, or automatic neurosurgical consultation. For adults with minor head injury, current ACEP policy and the modified Brain Injury Guidelines support a more selective ED disposition strategy, including safe discharge for carefully defined low-risk patients. Mild TBI Risk Stratification Adult mild TBI definition: ACEP defines mild TBI as GCS 14-15, with a GCS of 14 improving to 15 within 2 hours, with or without loss of consciousness, amnesia, or disorientation, and presentation within 24 hours of injury. Preferred head CT rule: The Canadian CT Head Rule carries the strongest ACEP endorsement for deciding who needs CT after minor head injury, with NEXUS Head CT and New Orleans Criteria offering lower specificity. Anticoagulation caution zone: Clinical decision tools should not be used to rule out CT in patients taking anticoagulants or antiplatelet agents other than aspirin, a key limitation that changes bedside decision-making. Post-concussion risk factors: Female sex, psychiatric history, intoxication, assault, loss of consciousness, and GCS below 15 all raise concern for post-concussive syndrome, while current biomarkers do not reliably predict it. We get into the follow-up nuances in the episode. mBIG and ED Disposition mBIG clinical frame: The modified Brain Injury Guidelines are built to identify CT-positive TBI patients who can avoid routine repeat imaging and neurosurgical consultation after structured observation. Category-based disposition: mBIG sorts patients into three pathways based on exam, intoxication, anticoagulation, skull fracture, and hemorrhage pattern. We walk through the category logic in the chapter. Low-risk discharge concept: mBIG 1 is essentially an ED-to-home pathway after short observation, capturing patients with reassuring neurologic examination and small-volume intracranial hemorrhage. Resource use signal: After mBIG implementation, head CT use and neurosurgical consults dropped substantially, with fewer than two-thirds receiving repeat CT compared with nearly universal imaging before. Observed deterioration rate: Neurologic worsening during observation was uncommon at 1.6%, and most of those patients had clinical change without radiographic progression or need for intervention. System-level implementation: This is a workflow change, not a solo practice hack; mBIG works best as a shared ED-trauma-neurosurgery protocol, especially where transfer patterns and ICU use are driving over-triage.

2023 AHA Focused Updates: Poisoning

Poisoning resuscitations hinge on recognizing the toxin-specific physiology behind shock, dysrhythmia, and respiratory failure. The 2023 AHA focused update sharpens emergency management for opioid, benzodiazepine, beta-blocker, calcium channel blocker, cyanide, digoxin, local anesthetic, organophosphate, cocaine, methemoglobinemia, and sodium-channel blocker poisoning. Airway and antidote priorities Opioid arrest priorities: In suspected opioid overdose with cardiac arrest, high-quality CPR and ventilation come before naloxone; if there is a pulse with inadequate breathing, naloxone is reasonable. Post naloxone observation: Recurrent opioid toxicity is common after an initial response, so patients need monitored observation until breathing, mental status, and vital signs have normalized. Selective flumazenil use: Flumazenil belongs only in carefully selected pure benzodiazepine poisoning; seizure history and benzodiazepine or alcohol dependence are major reasons to avoid it. Naloxone before flumazenil: When opioid and benzodiazepine co-ingestion is possible, naloxone is the first antidote for respiratory depression. We get into the practical sequencing in the episode. Cardiotoxic overdose management High dose insulin backbone: For beta-blocker and calcium channel blocker poisoning with hypotension, high-dose insulin is a first-line therapy alongside vasopressors rather than a late salvage move. Glucagon's narrower role: Glucagon remains reasonable for beta-blocker poisoning with bradycardia or hypotension, but its benefit in calcium channel blocker toxicity is much less certain. Lipid emulsion boundaries: IV lipid emulsion is not routinely recommended for beta-blocker or calcium channel blocker poisoning, but it remains indicated for local anesthetic systemic toxicity. ECMO rescue threshold: VA-ECMO has a defined role in refractory cardiogenic shock from beta-blocker, calcium channel blocker, local anesthetic, and sodium-channel blocker poisoning. We cover where that escalation fits on the show. Dialyzable exceptions: Hemodialysis may help in severe atenolol or sotalol poisoning, a useful reminder that not all beta-blocker overdoses behave the same way. Sodium channel blockade syndromes Bicarbonate first line: Sodium bicarbonate is the cornerstone therapy for life-threatening cardiotoxicity from tricyclic antidepressants and other sodium-channel blocker poisonings. Cocaine wide complex treatment: In cocaine poisoning with wide-complex tachycardia, sodium bicarbonate is reasonable and lidocaine is also supported, reflecting sodium-channel toxicity rather than simple stimulant excess. Local anesthetic dysrhythmias: Local anesthetic systemic toxicity with wide-complex tachycardia also responds to sodium bicarbonate, while seizures should be treated with benzodiazepines. Lipid as rescue: For sodium-channel blocker poisoning, lipid emulsion is a rescue therapy after standard measures fail rather than an early routine antidote. We walk through that distinction in the chapter.

Massive Hemoptysis

Massive hemoptysis is an airway emergency where asphyxiation, not exsanguination, is the usual cause of death. In ED management of coughing up blood, severity is defined by respiratory failure, hemodynamic instability, or inability to clear the airway more than by any single volume cutoff. Massive Hemoptysis Recognition and Workup Functional severity definition: Massive hemoptysis is best recognized by cardiopulmonary compromise or failed airway clearance rather than a rigid blood-volume threshold, because even modest blood can rapidly obstruct ventilation. Bronchial artery source: Bronchial arteries are the culprit in about 90% of massive hemoptysis, a high-pressure system that explains why bleeding can be brisk even when the lung parenchyma is the apparent target. Asphyxiation over exsanguination: The immediate lethal threat is suffocation from blood filling the airways, not blood loss, and the roughly 150 mL anatomic dead space explains how patients can decompensate fast. CTA imaging choice: CTA with pulmonary arterial phase contrast is the preferred imaging study because it can localize the bleeding site and vascular anatomy for embolization. We get into the radiology timing nuance in the episode. Bronchoscopy fallback: If the patient cannot lie flat, protect the airway, or maintain perfusing pressure for CT, emergent bronchoscopy becomes the diagnostic and therapeutic test of choice. Airway Stabilization and Definitive Control Don't rush to intubate: Avoid intubation in the alert patient who is coughing effectively and clearing blood, because spontaneous cough is the best airway clearance tool in massive hemoptysis. When intubation is necessary: Intubate for hypoxemia with increased work of breathing, altered mental status, or inability to clear secretions, treating this as both an anatomically and physiologically difficult airway. Airway setup priorities: Prepare dual large-bore suction, full PPE, backup airway devices, and a cricothyrotomy plan, with the most experienced operator at the head of bed for first pass success. Tube and positioning strategy: A large-bore endotracheal tube of at least 8.0 mm facilitates bronchoscopy and suction, and after intubation the bleeding lung should be placed dependent to protect the other side. Hemostatic temporizing measures: Reverse anticoagulants early, correct platelets and fibrinogen when low, and consider nebulized tranexamic acid 500 to 1000 mg as a low-cost adjunct that should not delay definitive control. Early specialty mobilization: Pulmonary-critical care, interventional radiology, and cardiothoracic surgery should be engaged early because bronchial artery embolization controls bleeding in 80% to 100% of cases, with important exceptions we cover on the show.

Lit Matters 3: Can we help reduce long-term symptoms from mild TBI?

Mild traumatic brain injury is common in the ED, and persistent post-concussive symptoms remain hard to predict and harder to prevent. Current evidence supports the Canadian CT Head Rule for imaging decisions, safe discharge after a single negative CT in selected anticoagulated patients, and targeted follow-up rather than routine repeat testing. Mild TBI risk stratification ACEP mild TBI definition: ACEP defines mild TBI as GCS 14-15, improving to 15 within 2 hours if initially 14, with or without loss of consciousness, amnesia, or disorientation, presenting within 24 hours of injury. Preferred head CT rule: The Canadian CT Head Rule carries the strongest ACEP recommendation for identifying adults with minor head injury who do not need CT, with NEXUS Head CT and New Orleans Criteria trailing in specificity. Anticoagulation decision-rule limitation: Clinical decision tools should not be used to rule out CT in patients taking anticoagulants or antiplatelet agents other than aspirin, a distinction that matters at the bedside and comes up in the episode. Single negative CT discharge: For anticoagulated or antiplatelet-treated patients with a normal exam and no hemorrhage on initial CT, routine repeat imaging, admission, and prolonged observation are not recommended. Post-concussion risk factors: Higher post-concussive symptom risk clusters around female sex, prior psychiatric history, GCS below 15, assault, intoxication, loss of consciousness, and pre-injury anxiety or depression. What may improve outcomes Weak signal overall: The intervention literature is heterogeneous and noisy, with far more uncertainty than protocol-ready answers despite the frequency of mild TBI in emergency practice. Predictive model promise: Prediction tools showed the most consistent signal for identifying patients at highest risk of post-concussive syndrome, with recurrent features including prior TBI, headache, and memory impairment. Discharge instruction reality: Routine ED concussion instructions are often weak in both content and readability, while add-ons like booklets, videos, electronic handouts, and telephone counseling have not shown durable benefit. Rest versus exercise uncertainty: Advice on strict rest versus early exercise remains unsettled, with mixed study results rather than a clear winner. We get into the practical uncertainty in the chapter. Protocol and function findings: Observation-unit pathways mainly improved throughput metrics like shorter length of stay and fewer admissions, while one social-work intervention improved community functioning at 3 months. Immediate reinjury avoidance: The clearest practical message is that a second head injury during early recovery is bad, even as the rest of the prevention literature still offers more noise than signal.