CONTENTS Rapid Reference 🚀 Pathophysiology Epidemiology Clinical presentation Lab tests Diagnosis Differential diagnosis Overall approach to diagnosis CDC diagnostic criteria Treatment Basic sepsis resuscitation Antibiotics Source control Intravenous immunoglobulin (IVIG) Purpura fulminans Preventing nosocomial transmission Podcast Questions & discussion Pitfalls pathophysiology Some Streptococcus and Staphylococcus species secrete superantigens that causes widespread activation of T-lymphocytes (figure […]
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PulmCrit – Awake Proning for COVID-19
Recently, many on twitter have been engaged in a furious debate about how to ventilate patients with COVID-19. Is it ARDS or not? High PEEP or low PEEP?… As an intensivist, these issues are near and dear to my heart. However, the truth is that humble methods to keep patients off invasive ventilation altogether are […]
Clostridioides (prev: clostridium) difficile
CONTENTS Rapid Reference – Management of severe C. Difficile 🚀 Prevention and C. Diff-o-genic antibiotics Presentation & diagnosis Lab testing Colonoscopy Imaging Risk-stratification Treatment Non-standard therapies Podcast Questions & discussion Pitfalls Checklist for management of severe C. Difficile ✅ Sepsis resuscitation 📖 Imaging (Abdominal X-ray +/- CT scan) 📖 Consider serial abdominal X-ray to follow […]
Non-anion-gap metabolic acidosis (NAGMA)
CONTENTS Diagnosis Causes Investigation Treatment Podcast Questions & discussion Pitfalls The diagnosis of NAGMA may be made in one of two ways (red arrows above) Patient has normal anion gap with metabolic acidosis (bicarbonate < 22 mM). Patient has an anion gap metabolic acidosis, but the decrease in bicarbonate is much greater than the elevation […]
Diagnosis of metabolic acid-base disorders
CONTENTS Rapid Reference 🚀 Getting started: metabolic vs. respiratory abnormalities The anion gap Diagnostic approach to metabolic pH abnormalities Respiratory pH analysis & how much will it help us? Basic principle: Diagnoses are more important than numbers Other approaches to pH analysis Podcast Questions & discussion Pitfalls diagnosis of metabolic acidosis/alkalosis: evaluating compensation: metabolic vs. […]
The Case of the Precise Inaccuracy
In the world of medical science we are often lulled into a false sense of security by large sample sizes and their correspondingly small confidence intervals. We often forget that such methodologic strengths augment only a trials precision, or the likelihood a similar trial will produce similar results. Such statistical robustness speaks little towards a […]
Contrast Nephropathy, myth thereof
CONTENTS Venous injection of contrast (e.g. for CT scan) The birth of the contrast nephropathy myth Current lack of evidence regarding contrast nephropathy Weighing the risks vs. benefits of using contrast (Renalism) The attention given to contrast nephropathy is insane Intra-arterial contrast (e.g. cardiac catheterization) Algorithm Podcast Questions & discussion Pitfalls The concept of contrast […]
Sympathomimetic intoxication
CONTENTS Overview Clinical presentation Evaluation Management Serotonergic medications to avoid Agitation Seizures Hyperthermia Hypertension Chest pain & acute coronary syndrome Arrhythmia Atrial fibrillation Monomorphic ventricular tachycardia QT prolongation & torsade de pointes Hepatic failure Respiratory complications Rhabdomyolysis Hyponatremia Podcast Questions & discussion Pitfalls common sympathomimetic intoxications: Cocaine. Methamphetamine: Illicit “crystal meth.” Medicinally prescribed methamphetamine, used […]
Anticholinergic intoxication
CONTENTS Anticholinergic agents Epidemiology Clinical presentation Differential diagnosis Evaluation Management Physostigmine Treatment of agitation Other management issues Management of combined anticholinergic & sodium channel blocker toxicity Podcast Questions & discussion Pitfalls There are hundreds of substances with anticholinergic activity. Below are some of the most common and notable. agents which function predominantly as anticholinergics Atropine. […]
PulmCrit – Oscar awards for the best COVID prognostic models
We are continually tasked with triaging COVID patients, a situation which will become more complex as the numbers continue to rise. This involves making educated guesses about which patients are most likely to deteriorate, and which patients may benefit most from critical care. That’s enormously difficult. At this point, we’re quite familiar with individual risk […]
Epiglottitis
CONTENTS Signs & symptoms Differential diagnosis Diagnosis Management Medical Management Epiglottic abscess Airway management Indications for intubation Intubation procedure Extubation procedure Podcast Questions & discussion Pitfalls symptoms Sore throat (92%)(31173373) Swallowing problems Odynophagia (82%) Dysphagia (80%) Drooling (18%) Voice change (43%) Hoarseness (26%) Muffled voice (30%) Respiratory dysfunction Stridor (8%) Dyspnea (33%) Inability to lie […]
Bupropion intoxication
CONTENTS Overview Pharmacodynamics Pharmacokinetics Diagnostics & doses Clinical evolution Treatment Activated Charcoal Whole bowel irrigation Neurotoxicity management Cardiotoxicity management Podcast Questions & discussion Pitfalls Bupropion is increasingly used for several indications (depression, tobacco cessation, and ADHD). Unfortunately, it is also a uniquely dangerous and increasingly common source of intoxication (especially the extended-release formulations). For example, […]
PulmCrit: pH-guided fluid resuscitation & BICAR-ICU
The use of bicarbonate is a source of eternal disagreement. Bicarbonate has a shameful history of being abused in situations where it’s unhelpful (e.g. cardiac arrest). This has impugned its reputation, giving it an aura of ignorance and failure. Consequently, bicarbonate is underutilized in some situations where it might actually help.
NeuroEMCrit – 31 #NeuroPostItPearls
A multiplicity of neuro tips
Autoimmune Encephalitis
CONTENTS Definitions & classifications General clinical features Diagnostic evaluation CSF evaluation MRI EEG Evaluation for underlying malignancy Anatomic classification Limbic encephalitis Cortical-subcortical encephalitis Basal ganglia involvement, including striatal encephalitis Diencephalic encephalitis Brainstem encephalitis Cerebellitis Meningoencephalitis Encephalomyelitis Classification by antibody Antibodies against intracellular proteins Antibodies against cell surface proteins Management of autoimmune encephalitis Specific disorders Anti-NMDA […]
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