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Episode 959: The KLM Flight Disaster and Lessons in Healthcare Communication

Emergency Medical Minute

Release Date: 06/02/2025

Podcast 1024: Caffeine Toxicity show art Podcast 1024: Caffeine Toxicity

Emergency Medical Minute

Contributor: Taylor Lynch, MD Educational Pearls: Excessive caffeine intake can be dangerous. For normal adults, the toxicity level starts at 1000mg, which is equivalent to about 10 cups of coffee or 5 celsius drinks.  For normal adults, lethal levels are about 5-10 grams, which is equivalent to about 50-100 cups of coffee. Most of these outcomes are not from drinking caffeine, but instead concentrated caffeine pills. For children, toxic levels are 15mg per kg of the child.    Within the last 10 years 20-40 deaths due to caffeine intake have been reported. This...

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Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: Case review of a patient with recurrent episodes of syncope and shortness of breath, during which she is found to have intermittent runs of polymorphic ventricular tachycardia Torsades de pointes is polymorphic ventricular tachycardia occurring in the setting of a prolonged QT/QTc Risk of torsades increases substantially when QTc exceeds 500ms Causes: Common reversible causes include QT-prolonging medications, hypokalemia, hypomagnesemia, hypocalcemia, bradycardia, and structural heart disease Congenital causes of a prolonged QT...

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Podcast 1022: Emergent Dialysis show art Podcast 1022: Emergent Dialysis

Emergency Medical Minute

Contributor: Taylor Lynch, MD Educational Pearls: When a patient who missed dialysis presents to the emergency department, our clinical concern is who needs to be admitted to the hospital for emergent dialysis and who can wait for their next regularly scheduled session. Dialysis sessions typically occur on Monday, Wednesday, and Friday, or Tuesday, Thursday, and Saturday. Acronym for indications for emergent dialysis: AEIOU Acidosis Patients may have an underlying cause for acidosis such as sepsis or DKA. Treat the underlying cause, but if the acidosis is unable to be...

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Podcast 1021: Pulmonary Edema From Naloxone Administration show art Podcast 1021: Pulmonary Edema From Naloxone Administration

Emergency Medical Minute

Contributor: Travis Barlock, MD Educational Pearls: What is pulmonary edema?  Pulmonary edema is the accumulation of fluid initially in the interstitium of the lungs, that when severe enough can also accumulate in the alveolar air sacs. It develops when the rate of fluid filtration through the pulmonary vasculature out-paces the lymphatics ability to drain the fluid.  There are 2 theories for what causes pulmonary edema in the setting of naloxone administration: catecholamine surge vs negative pressure/barotrauma Catecholamine Surge : Naloxone administration precipitates an...

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Emergency Medical Minute

Contributor: Alec Coston, MD Educational Pearls: Benign Paroxysmal Positional Vertigo (BPPV) Common inner ear condition that can cause dizziness Diagnosis of BPPV can help to avoid admissions and extra imaging Three categories: positional, horizontal, and anterior Positional is the most common  Dizziness is not a positive indicator, a torsional nystagmus must be induced Dix's hallpike maneuver is done to diagnose and an epley maneuver is then used for treatment  Horizontal  Usually determined to be the case if the vertigo seems positional and the dix...

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Podcast 1019: Trauma Blunt Cardiovascular Injuries (BCVI) show art Podcast 1019: Trauma Blunt Cardiovascular Injuries (BCVI)

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls:  Blunt cerebrovascular injury (BCVI) BCVI is a traumatic injury to the carotid or vertebral arteries Patients may initially have no neurologic symptoms In some cases, a thrombus can form at the site of the injury and later cause ischemic stroke, sometimes hours after the original trauma CT angiography (CTA) of the neck is a useful screening tool for BCVI HIstorically, CTA was reserved for patients with high-risk mechanisms or neurologic symptoms CTA screening has expanded as understanding of BCVIs and their prevention...

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Podcast 1018: Occult Ventricular Fibrillation on Echocardiography show art Podcast 1018: Occult Ventricular Fibrillation on Echocardiography

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: Big question in cardiac arrest: is the rhythm shockable? Shockable: ventricular fibrillation (VF) and pulseless ventricular tachycardia Non-shockable: asystole and pulseless electrical activity (PEA) Rhythm classification is typically based on ECG, but echocardiography can directly visualize myocardial fibrillation Occult VF: a rhythm that appears non-shockable on ECG but demonstrates VF on echocardiography A 2025 multicenter prospective study looked at 811 patients with out-of-hospital cardiac arrest 5.3% had occult VF...

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Podcast 1017: CPR Hand Placement show art Podcast 1017: CPR Hand Placement

Emergency Medical Minute

Contributor: Taylor Lynch, MD Educational Pearls:  CPR is an important life-saving measure designed for anyone to perform. Chest compressions works by two mechanisms:  Cardiac pump: Direct squeezing of the heart Thoracic pump: Increasing intrathoracic pressure, causing increased blood flow Proper hand placement per current AHA guidelines:  Hands are placed in the center of the chest, on the lower half of the sternum A recent study challenged this approach, using TEE during chest compressions to visualize the cardiac structures being compressed. They found...

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Podcast 1016: Hypokalemia show art Podcast 1016: Hypokalemia

Emergency Medical Minute

Contributor: Meghan Hurley, MD Educational Pearls: What is hypokalemia? Hypokalemia is when the measured blood level of potassium falls below 3.5 mEq/L (normal 3.5 - 5.2 mEq/L).  Can generally be considered in mild (3.0 - 3.5 mEq/L); moderate (2.5 - 2.9 mEq/L); and severe (<2.5 mEq/L) categories with differing treatment goals based on levels.  Should be noted that blood levels of potassium can be low while total body potassium is normal due to intracellular shift by certain agents like β-2 agonists (e.g. Albuterol) or insulin. There is no appreciable loss of insulin despite...

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Podcast 1015: Calcium in Hyperkalemia show art Podcast 1015: Calcium in Hyperkalemia

Emergency Medical Minute

Contributor: Meghan Hurley, MD Educational Pearls: What is hyperkalemia? Hyperkalemia is when the measured blood level of potassium reaches above 5.2 - 5.5 mEq/L (normal 3.5 - 5.2 mEq/L).  What are common causes of hyperkalemia?  Chronic or acute kidney disease. Medications that impact the Renin-Angiotensin-Aldosterone-System (RAAS).  Hypoaldosteronism and primary adrenal insufficiency (Addison’s Disease). What are concerns of hyperkalemia? The biggest concern with hyperkalemia is the impact on the cardiac conduction system. At differing levels of...

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Contributor: Taylor Lynch, MD
Educational Pearls:

The KLM Flight Disaster, also known as the Tenerife Airport Disaster, occurred on 27 March 1977. It involved the collision of two Boeing 747 passenger jets from KLM and Pan Am Airlines, resulting in 583 fatalities. 

What fell through the cracks to cause this incident?

  • The captain of the KLM flight believed he had received clearance from air traffic control to take off, when in fact he had not.
  • This captain was one of the most senior pilots in the organization, and the culture often saw senior pilots as infallible and not to be questioned.
  • The co-pilot, who noticed improper communication resulting from power dynamics, did not assertively speak up. 

What lessons can be taken from the tragedy and applied to healthcare? 

  • Aviation and healthcare are both high-stakes industries that require extensive communication for the safety of passengers and patients.
  • Within medicine, an inherent hierarchy exists, and it is crucial not to let this hierarchy and perceived power imbalance prevent people from speaking up.
  • In healthcare, providers such as nurses, paramedics, and technicians may spend more time with patients and thus may notice warning signs earlier. It is imperative to foster a culture where they can speak up freely and without hesitation if something concerning is caught in a patient. 

When might mistakes happen most often?

  • Hanna et al. found that radiological interpretation errors were more likely to occur later in shifts, peaking around the 10-to-12-hour mark.
  • Leviatan et al. found that medication prescription errors were more likely to occur by physicians working on 2nd and 3rd consecutive shifts.
  • Hendey et al. found medication ordering errors were higher on overnight and post-call shifts.
  • Gatz et al. found that surgical procedural complication rates are higher during the last 4 hours of a 12-hour shift.

In Short, Ends of shifts are when mistakes are most likely to occur. 

Overall takeaway?

  • In a healthcare team, it is critical to look after each other regardless of years of experience or post-nominal letters, and speak up for patient safety. Making a special note that we may need to do so more towards the end of shifts, where we might not be at our sharpest. 
     

References

  1. Gatz JD, Gingold DB, Lemkin DL, Wilkerson RG. Association of Resident Shift Length with Procedural Complications. Journal of Emergency Medicine. 2021 Aug 1;61(2):189–97.
  2. Hanna TN, Lamoureux C, Krupinski EA, Weber S, Johnson JO. Effect of Shift, Schedule, and Volume on Interpretive Accuracy: A Retrospective Analysis of 2.9 Million Radiologic Examinations. Radiology. 2018 Apr;287(1):205–12.
  3. Hendey GW, Barth BE, Soliz T. Overnight and postcall errors in medication orders. Acad Emerg Med. 2005 Jul;12(7):629–34.
  4. Leviatan I, Oberman B, Zimlichman E, Stein GY. Associations of physicians’ prescribing experience, work hours, and workload with prescription errors. J Am Med Inform Assoc. 2021 Jun 12;28(6):1074–80.

Summarized by Dan Orbidan, OMS2 | Edited by Dan Orbidan & Jorge Chalit, OMS4

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