Hippo ERcast January 2024

Conciliating the Consultant

Interphysician conflict in emergency medicine is not just a culture problem; it degrades patient-care conversations and contributes to physician burnout. Admission calls between the ED and consulting services work better when disagreement is redirected toward shared bedside goals rather than personal affronts. Consultant Conversations in the ED Burnout and patient care: Poor ED-consultant interactions are linked to physician burnout on both sides, and once the call turns adversarial the conversation becomes less useful for actual patient care. Admission friction points: A request for more testing or an alternate diagnosis is often heard in the ED as a delay tactic or critique of competence, even when the consultant is raising a legitimate concern. Conflict avoidance traps: Two common failure modes are doing the extra work without discussion or accepting the admission without speaking up; both shut down the clinical back-and-forth patients need. Resetting the tone: A deliberate pause after a heated comment can lower the temperature and reopen a productive exchange, then a calm return to the shared patient question becomes possible. We walk through the phrasing in the episode. Bring it back bedside: Asking the consultant to evaluate the patient in the ED reframes the disagreement around direct assessment and next steps instead of a stalled phone argument. Relationship before conflict: Knowing consultants by name, face, and perspective makes professionalism easier under stress, and humility about what happens after ED care often improves the consult itself.

The Art of ED Extubation

Emergency department extubation is appropriate for a narrow group of patients whose reason for intubation has clearly resolved and who can oxygenate, ventilate, and protect their airway. Success depends more on patient selection, sedative choice, and a standardized bedside approach than on speed. Emergency Department Extubation Pearls Appropriate patient selection: ED extubation fits short-term indications such as intoxication, procedural airway protection, or improving head injury with negative imaging, while the patient headed to the ICU usually should remain intubated. Resolved intubation indication: The central decision point is whether the original reason for intubation is gone and the anticipated hospital course no longer requires mechanical ventilation. Minimal ventilator support: Candidates should be oxygenating and ventilating on low settings, with spontaneous breathing trial targets that include an oxygen saturation above 92% and no increased work of breathing. We walk through the bedside checklist in the episode. Airway and strength assessment: Extubation readiness is more than numbers: a strong cough, secretion control, and simple strength checks like lifting the head off the bed help identify who will protect their airway. Sedation and paralytic strategy: If a short intubation is likely, propofol is the sedative that turns off cleanly and succinylcholine is the short-acting paralytic that avoids prolonged weakness better than rocuronium. Post-extubation failure signals: Early trouble looks like inability to handle secretions, abnormal respiratory rate, or tachycardia, and these patients need close monitoring with oxygen support and end-tidal CO2 rather than a quick discharge. Extubation Complications And Rescue Post-extubation stridor risk: Post-extubation stridor is uncommon but real, and first-line treatment centers on nebulized epinephrine, steroids, and higher-level oxygen support rather than assuming immediate reintubation. Noninvasive support bridge: HFNC or BiPAP can buy time in the immediate post-extubation period for selected patients before committing to reintubation, and we get into where that bridge helps most in the chapter. Sedation mismatch problem: A common failure mode is trying too early, when sedatives have not worn off enough for airway control but the patient is awake enough to fight the tube. Dexmedetomidine transition: When the emerging patient cannot tolerate the endotracheal tube, switching from propofol to dexmedetomidine can smooth the runway to extubation without the same abrupt wake-up. Reintubation backup setup: Every extubation should be treated like a potential airway procedure in reverse, with a bougie, LMA, and cricothyrotomy kit immediately available if the plan fails. No immediate discharge: Even after an apparently smooth ED extubation, these patients need ongoing observation because early fatigue, secretion burden, or airway edema can declare themselves after the tube is out.

Lit Matters #1: Does a 6-Hour Lactate Matter in Sepsis?

In sepsis, the repeat 6-hour lactate appears more prognostic for 30-day mortality than either the initial lactate or lactate clearance. The harder bedside question is what that means for ED resuscitation when lactate reflects more than tissue hypoperfusion and performance measures still demand a redraw. Six-Hour Lactate in Sepsis Repeat lactate signal: A 6-hour lactate outperformed both the initial value and lactate clearance for predicting 30-day mortality, making the redraw more useful as a prognostic marker than as a clean resuscitation target. Initial lactate limits: The first lactate was less helpful unless it was profoundly elevated, with levels above 7 standing out as the one clearly ominous bedside finding from the paper. Clearance versus level: Lactate clearance still tracked with mortality, but less strongly than the absolute 6-hour level, a distinction that matters when teams are chasing numbers late in resuscitation. Practical cutoff signal: A 6-hour lactate of 2 or more was highly sensitive but poorly specific for 30-day mortality, so it flags risk better than it settles prognosis. We get into how to use that tension in the episode. Physiology caveat: Septic hyperlactatemia is not just occult hypoperfusion; adrenergic stress, impaired clearance, and shock biology all blur the meaning of an elevated value at the bedside. Study population bias: The cohort was built from Sepsis-3 patients identified through positive qSOFA and SOFA rise, enriching for sicker patients and likely inflating mortality compared with a broader ED sepsis population.

Neuro Pro-Tips with Andy Perron: SAH

Subarachnoid hemorrhage is a high-stakes cause of thunderclap headache, with roughly two-thirds of patients dying or suffering major neurologic disability. Noncontrast head CT is strongest early, but the real bedside challenge is what to do after a negative scan when suspicion remains high. SAH Diagnosis and Risk Stratification High-risk headache features: Sudden crescendo headache, exertional onset, anticoagulant use, heavy smoking, binge drinking, and a first-degree family history of SAH all raise pretest probability and should sharpen your workup. Early head CT performance: Noncontrast head CT obtained within 6 hours is highly sensitive for SAH, but the quoted 97% to 100% range matters when you are deciding whether a negative scan is enough. All-or-none workup mindset: A useful framing is to decide whether you are truly worried about SAH before ordering tests, because symptom improvement after treatment does not meaningfully lower the chance of a bleed. That bedside stance is worth hearing in the episode. CTA versus LP distinction: CTA looks for aneurysm anatomy, while lumbar puncture looks for evidence that an aneurysm has leaked; a negative CTA alone cannot definitively exclude SAH. Guideline disagreement after CT: ACEP allows CTA or LP after a negative CT in selected patients, while AHA leans toward LP when suspicion stays high, especially with neurologic deficits or delayed presentation. Lumbar Puncture and SAH Management Traumatic tap reality: About 15% to 20% of lumbar punctures are uninterpretable, so the downstream value of LP depends heavily on procedural quality and how confidently the results can be read. Tube four red cells: Less than 500 RBCs in tube 4 strongly argues against SAH, while more than 10,000 is highly concerning for true hemorrhage rather than a traumatic tap. Xanthochromia value add: Borderline CSF red cell counts become more useful when paired with xanthochromia, and the chapter gets into how that combination changes confidence after a negative CT. Blood pressure target: For confirmed SAH, a systolic blood pressure goal around 160 to 180 mmHg is a reasonable AHA-aligned target while definitive neurosurgical care is being arranged. Seizure treatment choices: Routine prophylactic antiseizure therapy is not recommended, and phenytoin or fosphenytoin are best avoided; levetiracetam or valproate are the preferred agents when seizures occur. Selective airway planning: Prophylactic intubation is not automatic in SAH; transport time, risk of deterioration, and local resources matter more than a one-size-fits-all rule. We walk through that judgment call in the episode.

Lit Matters #2: How does Epic’s Sepsis Prediction Model Compare to SIRS, qSOFA, and SOFA?

Early sepsis recognition is still a bedside problem, and proprietary EHR scores do not automatically outperform simple clinical tools. Epic’s Sepsis Prediction Model showed slightly better overall accuracy, but it was slower than SIRS and missed many septic patients before clinically meaningful time zero. Epic Sepsis Model vs Standard Scores External validation result: Epic’s Sepsis Prediction Model was not a plausible replacement for SIRS, qSOFA, or SOFA because its small accuracy advantage came with worse clinical timeliness. Headline accuracy tradeoff: A Prediction Score threshold of 8 had the best overall classification accuracy at about 0.79, but accuracy alone did not translate into better early sepsis detection. Sensitivity benchmark: A SOFA increase of 2 or more was the most sensitive comparator, identifying about 97% of sepsis admissions and outperforming the proprietary model on missed cases. Timeliness before time zero: SIRS identified the highest proportion of patients before sepsis time zero, while the Epic model flagged only 19% early. We get into why that matters operationally in the episode. Why the model lags: The Epic score uses a more complex 10-variable approach with demographic inputs, but that added complexity appears to delay recognition rather than sharpen ED usefulness. Practical ED takeaway: If a proprietary sepsis alert turns positive late, it may simply confirm what clinicians already suspected, making bedside assessment and validated tools more actionable in real time.

Elder Abuse: How to Diagnose it and What to do Next

Elder abuse is common, underrecognized, and associated with a roughly 300% higher risk of death in older adults. In the emergency department, the challenge is separating abuse, neglect, and self-neglect from falls, frailty, dementia, and complicated caregiver dynamics. Recognizing Elder Abuse in the ED High-risk patient groups: Older adults with dementia are at especially high risk, with abuse reported in up to half of patients living with cognitive impairment, particularly when the patient is physically or verbally aggressive. Suspicious injury patterns: Posterior rib fractures, distal ulnar shaft injuries, traumatic alopecia, and zygomatic bruising are red flags when the reported mechanism sounds like a simple fall. Bruising and story mismatch: Large bruises, injuries in different stages of healing, and discrepancies between exam findings and the caregiver's story should raise concern for inflicted trauma. Neglect and self-neglect: Missed appointments, absent medications, poor hygiene, malnutrition, and untreated sacral ulcers point toward neglect; self-neglect alone accounts for 42% of APS reports. Financial exploitation clues: Forced signatures, unexplained money loss, and confusion about paperwork suggest financial abuse, a problem estimated to cost billions of dollars annually in the US. Evaluation and Immediate Next Steps Separate patient and caregiver: Interviewing the older adult and caregiver apart is a basic diagnostic move, especially when fear, dependence, or loyalty may keep the patient from disclosing abuse. Specific screening questions: Direct questions about being hit, kicked, punched, pushed, denied medications, or pressured to sign documents uncover abuse more reliably than broad questions about safety. Home environment collateral: EMS observations about food access, hygiene, medications, and the living situation can reveal neglect that is easy to miss once the patient is cleaned up in the ED. Acute safety disposition: If there is an immediate safety threat, admission is the safest default while social work, case management, and follow-up resources are mobilized. We get into the disposition nuances in the episode. Mandatory reporting laws: Reporting requirements are state-specific, but cognitive impairment commonly triggers mandatory reporting, so emergency clinicians need to know their local Adult Protective Services rules.

GLP-1 Agonists: What ED Clinicians Need to Know

GLP-1 receptor agonists commonly cause dose-dependent gastrointestinal toxicity because they slow gastric emptying and increase satiety signaling. In the ED, semaglutide, liraglutide, and tirzepatide matter not just for nausea and vomiting, but for dehydration, pre-renal AKI, pancreatitis, and biliary disease. GLP-1 Agonists in Emergency Care Common drug names: Semaglutide, liraglutide, and tirzepatide are the key agents to recognize, with semaglutide appearing as Wegovy, Ozempic, and oral Rybelsus across obesity and diabetes indications. Mechanism behind symptoms: Delayed gastric emptying is the main pathophysiologic clue, explaining why nausea, vomiting, diarrhea, and early satiety dominate presentations rather than primary hypoglycemia. Weight-loss effectiveness: These drugs produce about 15% weight loss over 1 to 2 years, but substantial regain after discontinuation helps explain recurrent use, dose escalation, and repeat ED visits. High-risk adverse effects: Most complications are gastrointestinal, but severe volume loss can tip patients into hypotension and pre-renal AKI, especially early in therapy or after rapid dose escalation. Serious organ complications: Pancreatitis and gallbladder or biliary disease are the major can’t-miss diagnoses, with liraglutide carrying a notable pancreatitis signal. We get into the ED red flags in the episode. Hypoglycemia context: GLP-1 agonists alone rarely cause hypoglycemia; the risk rises mainly when they are paired with insulin or a sulfonylurea, which changes how reassuring a normal glucose should feel. Access, Safety, and Patient Counseling Who should not use: Pregnancy, type 1 diabetes, prior hypersensitivity, and a personal or family history of MEN2 or medullary thyroid cancer are the major contraindication flags worth catching in the chart. Renal injury pathway: Pre-renal AKI usually comes from vomiting, diarrhea, and poor intake rather than direct nephrotoxicity, with higher risk in CKD and in patients taking ACE inhibitors or ARBs. Compounded drug concerns: Compounded semaglutide may use salt forms that are chemically different from FDA-approved products, creating real uncertainty about potency, sterility, and safety. Shortage-driven workarounds: National shortages and monthly prices often above $900 push patients toward online pharmacies, wellness clinics, and med spas. We lay out the bedside counseling points in the chapter. FDA sourcing advice: Patients should obtain these medications from licensed clinicians and FDA-registered, state-licensed pharmacies, and should avoid compounded versions when an approved product is available.

Lit Matters #3: Does This Patient Need Blood Cultures?

Blood cultures are highest yield when pretest probability of bacteremia is high, and surprisingly low yield in many routine fever workups. In adult nonneutropenic inpatients, isolated fever or leukocytosis alone does not reliably predict bacteremia, while spinal infections, meningitis, septic arthritis, and septic shock sit at the other end of the spectrum. When Blood Cultures Help Most High-yield infectious syndromes: Blood cultures matter most in hard-to-culture or invasive infections such as vertebral osteomyelitis, epidural abscess, meningitis, septic joints, and septic shock, where bacteremia rates are often above 50%. Moderate-yield severe infections: Severe sepsis, acute pyelonephritis, cholangitis, pyogenic liver abscess, and severe CAP fall into a middle-yield group, reinforcing that patient acuity meaningfully raises culture utility. Low-yield routine scenarios: Uncomplicated cellulitis, lower UTI, uncomplicated CAP, and isolated postoperative fever often produce little microbiologic return, making reflex blood cultures hard to justify. Source control matters: Persistent bacteremia, especially MRSA, usually signals inadequate source control; the follow-up culture nuance is worth hearing in the episode. Findings That Should Not Drive Cultures Fever alone is weak: Fever by itself did not reliably predict bacteremia across reviewed studies, pushing back on the old habit of treating cultures as a standard fever workup. Leukocytosis adds little: Leukocytosis alone, or paired with fever, was not significantly associated with bacteremia in most patients, outside of specific syndromes such as suspected endocarditis. Shaking chills stand out: Rigors were the strongest bedside clue in one review, with an odds ratio of 4.7 for bacteremia, a more useful signal than fever alone. Early postoperative fever: Within 48 hours after surgery, blood cultures were consistently negative in the reviewed data, making this one of the clearest situations to hold off. What Cultures Change Clinically Limited antibiotic impact: The review found no strong evidence that blood cultures broadly changed antibiotic decisions, despite how often they are bundled into routine severe infection care. Primary source often wins: For cholangitis, pyelonephritis, purulent cellulitis, and severe CAP, source cultures usually outperform blood cultures for identifying the culprit organism. Blood beats source sometimes: In epidural abscess and discitis or vertebral osteomyelitis, blood cultures can provide better microbiologic information than the primary site, a distinction we get into in the chapter. Outcomes do not track cleanly: Outside select ICU infections like VAP, bacteremia showed little consistent relationship with mortality or length of stay in cellulitis, CAP, and complicated UTI cohorts.