Hippo ERcast April 2025

ERcast April 2025 Intro

Patients in police custody still require standard informed consent, medical necessity, and professional judgment in the emergency department. Invasive evidence-seeking exams on an unwilling patient sit far outside routine medical clearance, and the safest response is to center the patient, then escalate immediately to hospital leadership and risk management. Patients in Custody and Invasive Exams Medical necessity first: Emergency clinicians are responsible for medically indicated care, not law-enforcement objectives, and that distinction becomes critical when police request testing or exams that do not benefit the patient. Refused rectal examination: A forced rectal exam for suspected concealed drugs is framed here as an invasive, non-routine intervention that can require restraint and sedation despite a patient’s explicit refusal. Warrant does not decide care: Even when law enforcement presents a warrant, clinicians still have to apply consent, ethics, and medical judgment rather than treating the document as an automatic order to perform a procedure. Reasonable versus unreasonable requests: Routine requests such as medical clearance labs or imaging are different from unwanted invasive body searches, and that line is worth hearing in the episode. Early administrative escalation: Medical director input, risk management, and hospital administration should be brought in early when police requests conflict with patient interests or clinician ethics. We walk through that escalation instinct in the episode. Professional refusal and documentation: When a requested exam is not necessary, reasonable, or warranted, clinicians can appropriately refuse and document the clinical rationale rather than acting as agents of the legal system.

Peds Vomiting and Diarrhea Pitfalls

Most children with vomiting or diarrhea have acute gastroenteritis, but a few high-stakes diagnoses look deceptively similar. Bilious emesis in a neonate is a surgical emergency, and appendicitis, intussusception, UTI, DKA, toxic shock, and HUS all belong on the differential when the story or exam does not fit simple AGE. Pediatric Vomiting Red Flags Bilious emesis emergency: Neonatal bilious vomiting should be treated as malrotation with midgut volvulus until proven otherwise, with urgent transfer to pediatric surgery before routine testing delays care. Pyloric stenosis window: Pyloric stenosis peaks between 3 and 8 weeks of age and is unlikely after 3 months, making age one of the most useful bedside clues in the vomiting infant. Intussusception masquerade: Intussusception is the most common abdominal emergency in infants and can mimic gastroenteritis with vomiting, lethargy, intermittent pain, or an obstructive pattern. We get into the bedside pattern recognition in the episode. Appendicitis with diarrhea: Appendicitis is the most common abdominal emergency in children, and about one-third have nausea, vomiting, and diarrhea, especially those younger than 5 years. Febrile vomiting differential: Fever plus vomiting should widen the workup to UTI, meningoencephalitis, and intracranial pathology, especially when the exam shows soft neurologic or trauma clues. Metabolic toxicity clues: DKA and inborn errors of metabolism can present as vomiting before the diagnosis is obvious, particularly when the child appears systemically ill or unexpectedly dehydrated. Pediatric Diarrhea Pitfalls Shock with watery diarrhea: Profuse watery diarrhea in a hypotensive child should raise concern for toxic shock rather than routine infectious gastroenteritis, because the hemodynamics are the red flag. Bloody diarrhea warning: Bloody diarrhea should prompt consideration of hemolytic uremic syndrome, defined by microangiopathic hemolytic anemia, thrombocytopenia, and acute kidney injury. When to culture stool: Stool culture is most useful in infants, immunocompromised children, bloody diarrhea, or illness lasting beyond the usual self-limited viral course. We lay out the practical triggers in the chapter. Antibiotic restraint principle: Most pediatric diarrheal illness is viral or self-limited, and antibiotics can worsen outcomes in STEC by increasing the risk of hemolytic uremic syndrome. Antimotility drug harms: Antimotility agents should be avoided in children because reported complications include respiratory or CNS depression, anoxic brain injury, and toxic megacolon. Treatment and Disposition Pearls Ondansetron first line: Ondansetron is the preferred antiemetic for children, with a recommended dose of 0.15 mg/kg and fewer sedating adverse effects than alternative agents. Ondansetron age limits: ED ondansetron use is reasonable after 6 months of age, while home prescriptions are generally reserved for children older than 2 years. Fluid resuscitation basics: Children who need IV rehydration often start with a 20 to 40 mL/kg bolus, then ongoing fluids adjusted for maintenance needs and possible dextrose. Oral rehydration strategy: Home oral rehydration works for many children using structured replacement over several hours plus added volume for each vomiting or diarrhea episode. Return precaution anchors: Blood in stool, right lower quadrant pain, decreased urine output, or altered mental status are not routine AGE follow-up points; they are escalation signs worth emphasizing before discharge.

Lit Matters #1: Does Roc rock, and does Sux suck?

Rapid sequence intubation success depends more on airway technique and team performance than on whether you choose rocuronium or succinylcholine. In a large secondary analysis of DEVICE and PREOXI, the two paralytics showed similar first-pass success and no clear difference in severe peri-intubation complications. Rocuronium Versus Succinylcholine in RSI Comparable first-pass success: First-pass success was essentially the same with succinylcholine and rocuronium, reinforcing that paralytic choice alone is unlikely to rescue a weak intubation setup. No clear complication gap: Severe complications within 2 minutes of induction were not significantly different between agents, despite numerically higher events in the rocuronium group. Traditional tradeoff framing: Succinylcholine still offers a slightly faster onset, while rocuronium avoids the classic hyperkalemia and malignant hyperthermia concerns that shape bedside choice. System over drug dogma: The bigger signal is consistency: a familiar RSI workflow usually matters more than paralytic tribalism, and we get into that practice angle in the episode. Patient-specific exceptions: Certain patients still push the choice one way or the other, especially when potassium risk or prolonged paralysis changes the calculus, but the broad winner never really emerged.

Why is Geriatric Care so Hard? Atypical Syndromes You Need to Understand in Older Patients

Geriatric emergency care is hard because older adults often present with syndromes, not single complaints. Falls are usually multifactorial, delirium is common and frequently missed, and acute coronary syndrome in older patients often arrives without chest pain. Falls, Mobility, and Safe Disposition Multifactorial fall syndrome: A so-called mechanical fall is usually a syndrome driven by sensory loss, neuropathy, polypharmacy, cognitive impairment, or infection, so the cause matters as much as the injury. Index fall evaluation: A first fall should trigger questions about prior falls, mobility, assistive devices, and home safety because recurrent falls often signal an occult medical or functional decline. ED therapy consultation: PT or OT involvement during the ED visit can change the trajectory; index-visit therapy assessment has been associated with a 30% to 60% drop in 30-day revisits. Discharge safety planning: Older adults often sit in the gap between admission and unsafe discharge, making walkers, home PT, transportation, and rapid follow-up central to the real disposition plan. We get into practical disposition options in the episode. Delirium in Older ED Patients Acute brain dysfunction: Delirium is acute brain dysfunction marked by inattention, altered consciousness, and waxing-waning mental status rather than simple confusion or baseline dementia. High-stakes missed diagnosis: Delirium is present in about 7% to 10% of older ED patients, missed up to 75% of the time, and independently predicts higher 6-month mortality. Hypoactive delirium trap: The quiet patient who is sleepy, withdrawn, or not asking for anything may have hypoactive delirium, the most common subtype and the easiest one to miss. Structured screening tools: The Delirium Triage Screen and Brief Confusion Assessment Method give teams a shared bedside language for detection. We walk through where they fit in the episode. Collateral history importance: Family, caregivers, and facilities often provide the key distinction between chronic cognitive impairment and an acute change, which is essential before anchoring on the chief complaint. Atypical Acute Coronary Syndrome Chest pain absence: Older adults with ACS often do not have chest pain; among patients 85 and older, 40% of STEMIs and 60% of NSTEMIs presented without it. Symptom reframing: Dyspnea, syncope, weakness, altered mental status, upper extremity pain, abdominal pain, or nausea may be the ischemic presentation, so typical-versus-atypical language can mislead. Broader triage ECG triggers: Expanding immediate ECG criteria by age and symptom pattern improves early STEMI capture, with one rule reaching 92% sensitivity. We cover the triage logic in the chapter. Bias toward definitive care: A chief complaint other than chest pain delays ECGs and reperfusion, yet older adults account for 65% of STEMIs and 80% of MI deaths, so treatment cannot wait for classic symptoms.

Lit Matters #2: Ketamine vs Etomidate, round 1

Rapid sequence intubation with ketamine or etomidate produces similar first-pass success and mortality in critically ill adults. The main clinical distinction is peri-intubation hemodynamics: ketamine showed more short-term instability, while etomidate carries the longstanding concern of adrenal suppression and ongoing vasopressor exposure. Ketamine Versus Etomidate for RSI Comparable intubation efficacy: First-pass success was similar with ketamine and etomidate, supporting either agent as a reasonable induction choice when the airway plan is sound. Hemodynamic instability signal: Ketamine was linked to more peri-intubation hemodynamic instability, a composite including hypotension, vasopressor use, and even arrest during the intubation window. Mortality and organ failure: Mortality and SOFA outcomes were not meaningfully different, which argues against a clear patient-centered superiority for either induction agent. Vasopressor exposure pattern: Ketamine may reduce vasopressor-free days, while etomidate is often viewed through the lens of post-intubation pressor needs and adrenal suppression. We get into that bedside tradeoff in the episode. Dose heterogeneity caveat: Etomidate dosing was relatively uniform at 0.2 to 0.3 mg/kg, while ketamine ranged widely from 0.5 to 2 mg/kg, an important wrinkle when applying the pooled results. Subgroup noninferiority theme: Shock, sepsis, trauma, prehospital intubation, and paralytic-use subgroups showed no clear winner, suggesting the ketamine-versus-etomidate debate is more nuanced than dogma implies.

VB in the First 20 Weeks: OB/GYN Ask Me Anything

First-trimester vaginal bleeding is common, but the dangerous misses are ectopic pregnancy, pregnancy loss, and molar pregnancy. Pelvic exam, quantitative hCG, and transvaginal ultrasound anchor the workup, while bleeding after 14 weeks deserves a lower threshold to involve OB before discharge. Early Pregnancy Bleeding Workup Pelvic exam findings: Pelvic exam matters in bleeding before 20 weeks because it separates obstetric from non-obstetric bleeding and may show an open os, cervical lesions, or products of conception at the os. Quantitative hCG interpretation: A quantitative hCG helps frame ultrasound expectations; above the discriminatory zone, no intrauterine pregnancy on transvaginal ultrasound should raise concern for ectopic pregnancy. Pregnancy of unknown location: If hCG is below 1500 and ultrasound shows neither IUP nor ectopic pregnancy, repeat hCG at 48 hours and arrange follow-up ultrasound if symptoms stay stable. We walk through the outpatient timing in the episode. Second trimester distinction: Bleeding after 14 weeks is a different problem than routine first-trimester spotting, with more maternal-fetal implications and a lower threshold to contact OB before sending the patient home. Threatened and Incomplete Abortion Threatened abortion definition: Threatened abortion is vaginal bleeding with a closed cervical os and a viable pregnancy on ultrasound; if fetal cardiac activity is present, the risk of complete abortion is under 5%. Activity advice myths: Bed rest is not required for threatened abortion; practical discharge advice is pelvic rest and avoiding heavy lifting or other high-Valsalva activity for a short interval. Incomplete abortion options: Incomplete abortion means bleeding without a viable gestation plus passage of some products of conception, and stable patients often have expectant, misoprostol, or D&C pathways. Cervical os tissue removal: Ongoing bleeding can be driven by retained products lodged in the cervical os, and simple ring-forceps removal may markedly decrease bleeding in the right patient. Ectopic, Subchorionic, and Molar Pregnancy Ectopic treatment limits: Ectopic pregnancy is usually tubal and often presents with unilateral pain plus bleeding; methotrexate is generally off the table when hCG exceeds 5000 or fetal cardiac activity is seen. Rupture risk framing: A nonruptured ectopic can still rupture abruptly, so even initially stable patients may merit admission when medical therapy is contraindicated or follow-up reliability is uncertain. Subchorionic hematoma prognosis: Subchorionic hematoma is a common transvaginal ultrasound finding in early pregnancy and usually resolves before 15 weeks, but later presentations carry more concern for adverse outcomes. Molar pregnancy red flags: Molar pregnancy can cause very heavy bleeding and strikingly elevated hCG, with malignant potential that warrants ED OB involvement, blood products nearby, and gynecologic oncology follow-up. The disposition nuances are worth hearing in the chapter.

Tracheostomy Emergencies

Tracheostomy emergencies hinge on a few high-stakes distinctions: when and why the trach was placed, whether the tube is obstructed or dislodged, and whether the patient can still be oxygenated from above. Bleeding from a trach site raises a different threat profile, including the rare but catastrophic tracheoinnominate fistula. Respiratory Distress With a Tracheostomy Critical first history: The most important questions are when and why the tracheostomy was placed, because a fresh stoma, prior difficult intubation, or laryngectomy can completely change your rescue options. Three-part troubleshooting frame: Start by asking whether the trach is dislodged, obstructed, or functioning normally while the real problem is primary lung disease; that framing keeps the evaluation fast and organized. Inner cannula obstruction: A blocked inner cannula is the most common trach problem and is often fixed immediately by removing and clearing it. We walk through the bedside sequence in the episode. Suction catheter check: Passing a suction catheter to the level of the manubrium is a practical patency test; failure to pass suggests either tube obstruction or false passage from dislodgement. Guided tube replacement: Do not blindly replace a dislodged trach, especially before tract maturation at about 7 to 10 days; fiberoptic guidance or a bougie with ETCO2 confirmation is the safer approach. Dual-route oxygenation: In the crashing patient, temporize by oxygenating through both the mouth and the stoma, often with two operators, before choosing between trach troubleshooting and oral intubation. Bleeding From the Tracheostomy Most feared bleeding cause: Tracheoinnominate artery fistula is rare with modern low-pressure cuffs but remains the diagnosis you cannot miss when significant bleeding appears at a trach site. High-risk time window: The danger period for tracheoinnominate fistula is roughly 3 days to 6 weeks after placement, making recent tracheostomy bleeding especially concerning. Herald bleed warning: About 50% of tracheoinnominate fistulas announce themselves with a small sentinel bleed before catastrophic hemorrhage, so minor bleeding should not reassure you. Early source assessment: If the patient is stable enough, slightly withdrawing the tube or using a fiberoptic scope may localize bleeding near the stoma, while ENT evaluation remains the key next step. Temporizing hemorrhage control: Emergency control starts with overinflating the trach cuff to tamponade bleeding; if that fails, intubation from above plus digital compression against the manubrium can be lifesaving. We get into the rescue mechanics in the episode.

Lit Matters #3: Ketamine vs Etomidate, round 2. The saga continues.

Etomidate suppresses cortisol synthesis via 11-beta hydroxylase inhibition, but whether a single induction dose worsens outcomes remains unsettled. For emergency intubation, recent data also question a long-held RSI habit: sedative-first drug order may not be superior to paralytic-first for first-pass success or hypoxemia. Ketamine vs Etomidate for Induction Adrenal suppression signal: Etomidate inhibits 11-beta hydroxylase and lowers cortisol production, the biologic concern driving persistent debate about worse outcomes in septic and other critically ill patients. Large mortality association: In a massive propensity-matched cohort, etomidate was associated with higher hospital mortality than ketamine, with an absolute difference of about 3%. Hemodynamic tradeoff pattern: Ketamine appears to bring more peri-intubation hemodynamic instability, while etomidate tracks with greater downstream vasopressor use rather than cleaner shock physiology. Administrative data limits: This was retrospective database work using coding and matching, so the mortality signal is important but still vulnerable to confounding by indication and practice patterns. Practical bedside takeaway: Both agents remain reasonable for emergent intubation in a competent system, and the real value is knowing where each drug tends to create trouble. We get into that bedside framing in the episode. RSI Drug Sequence and First Pass Classic teaching challenged: Standard RSI teaching puts the sedative first to avoid awareness during paralysis, but newer data do not show a clear awareness penalty with paralytic-first sequencing. First-pass failure result: Paralytic-first RSI did not increase first-attempt failure and may even trend toward fewer failures, though the estimate was not definitive. Hypoxemia outcome: Oxygen desaturation was essentially unchanged between paralytic-first and sedative-first approaches, suggesting sequence alone is not the main driver of peri-intubation hypoxemia. Low-margin physiology cases: When oxygenation or hemodynamics leave little room for delay, a paralytic-first approach becomes more appealing despite limited evidence. We walk through that decision in the chapter. Current practice stance: The cautious default remains sedative first for most patients, with sequence adjustments reserved for select high-risk airways rather than adopted as a universal rule.