Nightmares Case 7: Hyperkalemia

This is the seventh in a case series we will be publishing that make up “The Nightmares Course”.

The Nightmares Course at Queen’s University (Kingston, Ontario) was developed in 2011 by Drs. Dan Howes and Mike O’Connor. The course emerged organically in response to requests from first year residents wanting more training in the response to acutely unwell patients. In 2014, Dr. Tim Chaplin took over as the course director and has expanded the course to include first year residents from 14 programs and to provide both formative feedback and summative assessment. The course involves 4 sessions between August and November and a summative OSCE in December. Each session involves 4-5 residents and covers 3 simulated scenarios that are based on common calls to the floor. The course has been adapted for use at the University of Saskatchewan, the University of Manitoba, and the University of Calgary.

Why it Matters

The first few months of residency can be a stressful time with long nights on call and the adjustment to a new level of responsibility. While help should always be available, the first few minutes of managing a decompensating patient is something all junior residents must be competent at. This case series will help to accomplish that through simulation.

Clinical Vignette

You’ve been called to assess a 67M on the general medical floor. He was admitted 3 days ago for a community acquired pneumonia and is now awaiting discharge home once out-patient services can be put in place. He was noted to be hypokalemic on labs this morning (3.2 mEq/L) and the daytime resident ordered KCl 10mEq in 100cc NS bolus, to be given once. On her initial assessment, the overnight nurse found that he was actually placed on an infusion over the last 10 hours and the patient is now confused and bradycardic.

Case Summary

This case involves the diagnosis and management of hyperkalemia. If not treated appropriately the patient will progress to ventricular fibrillation arrest.

Download here

Nightmares Hyperkalemia

EKG for the Case

ECG-Hyperkalemia-junctional-bradycardia-potassium-8

ECG-Hyperkalemia-sine-wave-serum-potassium-9.9

Source for both ECGs: https://litfl.com/hyperkalaemia-ecg-library/

Nightmares Case 6: Ventricular Tachycardia

This is the sixth in a case series we will be publishing that make up “The Nightmares Course”.

The Nightmares Course at Queen’s University (Kingston, Ontario) was developed in 2011 by Drs. Dan Howes and Mike O’Connor. The course emerged organically in response to requests from first year residents wanting more training in the response to acutely unwell patients. In 2014, Dr. Tim Chaplin took over as the course director and has expanded the course to include first year residents from 14 programs and to provide both formative feedback and summative assessment. The course involves 4 sessions between August and November and a summative OSCE in December. Each session involves 4-5 residents and covers 3 simulated scenarios that are based on common calls to the floor. The course has been adapted for use at the University of Saskatchewan, the University of Manitoba, and the University of Calgary.

Why it Matters

The first few months of residency can be a stressful time with long nights on call and the adjustment to a new level of responsibility. While help should always be available, the first few minutes of managing a decompensating patient is something all junior residents must be competent at. This case series will help to accomplish that through simulation.

Clinical Vignette

You are called by the ward nurse to assess a 65-year old male with a new onset of a “rapid heart rate”. This patient was admitted early yesterday and is awaiting a coronary angiogram for an NSTEMI.

Case Summary

In this scenario, the learner is called to the ward to assess a 65-year old male with new VT. The learner must recognize the rhythm and institute appropriate work-up and management including electrical cardioversion.

Download here

Ventricular Tachycardia

EKG for the Case

Source: https://litfl.com/ventricular-tachycardia-monomorphic-ecg-library/

Nightmares Case 5: Pulmonary Edema

This is the fifth in a case series we will be publishing that make up “The Nightmares Course”.

The Nightmares Course at Queen’s University (Kingston, Ontario) was developed in 2011 by Drs. Dan Howes and Mike O’Connor. The course emerged organically in response to requests from first year residents wanting more training in the response to acutely unwell patients. In 2014, Dr. Tim Chaplin took over as the course director and has expanded the course to include first year residents from 14 programs and to provide both formative feedback and summative assessment. The course involves 4 sessions between August and November and a summative OSCE in December. Each session involves 4-5 residents and covers 3 simulated scenarios that are based on common calls to the floor. The course has been adapted for use at the University of Saskatchewan, the University of Manitoba, and the University of Calgary.

Why it Matters

The first few months of residency can be a stressful time with long nights on call and the adjustment to a new level of responsibility. While help should always be available, the first few minutes of managing a decompensating patient is something all junior residents must be competent at. This case series will help to accomplish that through simulation.

Clinical Vignette

A patient is seen by the emergency team, diagnosed with a hip fracture after he slipped and fell, and admitted by the orthopedics service. His medications have been held and he has been made NPO and started on maintenance fluids in anticipation of an operation tomorrow. He is boarding in the emergency department when he wakes up with shortness of breath and hypoxia secondary pulmonary edema.

Case Summary

This case involves the approach to the patient with acute dyspnea. The patient is tachypneic, hypoxic, and hypertensive. The team should consider multiple possibilities but recognize pulmonary edema as the most likely cause.

The team is expected to appropriately call for help while initiating management. The patient will respond to supplemental oxygen, nitrates, and non-invasive positive pressure ventilation after which the internal medicine team will be consulted.

Download here

Pulmonary Edema

Chest X-ray for the Case

Screen Shot 2019-12-10 at 11.19.40 AM.png

Reference = https://radiologyassistant.nl/chest/chest-x-ray-heart-failure

EKG for the Case

LBBB ECG.png

Reference = http://hqmeded-ecg.blogspot.com/2012/10/hyperkalemia-in-setting-of-left-bundle.html

Ultrasounds for the Case

Find it HERE.

Nightmares Case 1: Bradycardia

This is the first in a case series we will be publishing that make up “The Nightmares Course”.

The Nightmares Course at Queen’s University (Kingston, Ontario) was developed in 2011 by Drs. Dan Howes and Mike O’Connor. The course emerged organically in response to requests from first year residents wanting more training in the response to acutely unwell patients. In 2014, Dr. Tim Chaplin took over as the course director and has expanded the course to include first year residents from 14 programs and to provide both formative feedback and summative assessment. The course involves 4 sessions between August and November and a summative OSCE in December. Each session involves 4-5 residents and covers 3 simulated scenarios that are based on common calls to the floor. The course has been adapted for use at the University of Saskatchewan, the University of Manitoba, and the University of Calgary.

Why It Matters

The first few months of residency can be a stressful time with long nights on call and the adjustment to a new level of responsibility. While help should always be available, the first few minutes of managing a decompensating patient is something all junior residents must be competent at. This case series will help to accomplish that through simulation.

Clinical Vignette

The triage note states – Patient “fainted” while returning from the bathroom at home. He was found to be slightly more confused by his wife and complained of right elbow pain.

Case Summary

This is a case of an elderly patient with syncope. He is found to be in third degree heart block.  The team is expected to perform an initial assessment and obtain an ECG. Upon recognizing the heart block, they should ensure IV access and place pacer pads while calling for help.

Download the case here:

Bradycardia

ECG for the case found here:

Brady.jpg

Source: https://www.ecgquest.net/ecg/complete-heart-block-3/

Geriatric Case 3: Termination of Resuscitation

This case is the third in a six-part mini-series focusing on the management of geriatric patients in the ED. This series of cases was written by Drs. Rebecca Shaw, Nemat Alsaba, and Victoria Brazil.

Dr. Rebecca Shaw is an emergency physician currently working as a Medical Education Fellow within the Emergency department of the Gold Coast Hospital and Health Service in Queensland, Australia. Dr. Nemat Alsaba (@talk2nemat) is an Emergency physician with a special interest in Geriatric Emergency Medicine, medical education and simulation. She is trying her best to combine these interests to improve Geriatric patient care across all health sectors. She is also an Assistant professor in medical education and simulation at Bond university. Dr. Victoria Brazil is an emergency physician and medical educator. She is Professor of Emergency Medicine and Director of Simulation at the Gold Coast Health Service, and at Bond University medical program. Victoria’s main interests are in connecting education with patient care – through healthcare simulation, technology enabled learning, faculty development activities, and talking at conferences. Victoria is an enthusiast in the social media and #FOAMed world (@SocraticEM), and she is co-producer of Simulcast (Simulationpodcast.com).

Why it Matters

Deciding when to terminate CPR is a very delicate moment in a patient’s care. It is literally the determination of possible life vs. certain death. There are clear guidelines for when to terminate resuscitation in certain contexts, but for patients who are brought to the ED by EMS, there is no true objective measure of when to terminate CPR. This is where determination of quality of life is important. In the elderly, the likelihood of a meaningful quality of life after a CPR-requiring event is quite low. Recognizing this futility is an important and challenging skill to learn. Being able to debrief with your team and discuss these events further is another essential skill that is often not practiced. This case gives the opportunity to learn and enhance these skills.

Clinical Vignette

ED RN to inform team prior to patient’s arrival: “We have an out of hospital cardiac arrest coming in with an unknown downtime and unknown past medical history. He is an 89-year-old male coming from home. He has had no shocks and CPR is in progress. They are one minute away.”

Case Summary

An elderly male is brought in by ambulance from home with CPR in progress. He collapsed in front of his son/daughter who commenced CPR. His rhythm has been PEA throughout and his downtime is 20 minutes. Participants should assess the patient, gather information about his background and determine that CPR is futile. They should decide to cease CPR and inform his son/daughter in a sensitive manner that their father has died. They will also debrief the team following the termination of resuscitation.

Download the case here: Geri EM Termination of Resuscitation

U/S for the case found here:

(U/S courtesy of McMaster PoCUS Subspecialty Training Program)

Geriatric Case 2: Chronic Digoxin Toxicity

This case is the second in a six-part mini-series focusing on the management of geriatric patients in the ED. This series of cases was written by Drs. Rebecca Shaw, Nemat Alsaba, and Victoria Brazil.

Dr. Rebecca Shaw is an emergency physician currently working as a Medical Education Fellow within the Emergency department of the Gold Coast Hospital and Health Service in Queensland, Australia.Dr. Nemat Alsaba (@talk2nemat) is an Emergency physician with a special interest in Geriatric Emergency Medicine, medical education and simulation. She is trying her best to combine these interests to improve Geriatric patient care across all health sectors. She is also an Assistant professor in medical education and simulation at Bond university. Dr. Victoria Brazil is an emergency physician and medical educator. She is Professor of Emergency Medicine and Director of Simulation at the Gold Coast Health Service, and at Bond University medical program. Victoria’s main interests are in connecting education with patient care – through healthcare simulation, technology enabled learning, faculty development activities, and talking at conferences. Victoria is an enthusiast in the social media and #FOAMed world (@SocraticEM), and she is co-producer of Simulcast (Simulationpodcast.com).

Why it Matters

This case demonstrates several diagnostic challenges that can occur with the bradycardic patient on digoxin including:

  • The need to resuscitate the patient appropriately (and thus, empirically treat) while waiting on labs to confirm whether hyperkalemia or digoxin is the culprit
  • The theoretical concern of administering calcium for correction of hyperkalemia (because we usually have a potassium result back before the digoxin level)
  • The need to consider precipitating causes of a patient’s presentation

Clinical Vignette

To be stated by the bedside nurse: “Bertie is an 85-year-old man who has been brought in after a fall at home. He says he is feeling dizzy and has a HR of 30 on the monitor. I haven’t had much of a chance to take more of a history from him but he has a list of medications with him and seems ok from the fall other than a bruise on his head.”

Case Summary

An 85-year-old man presents after a fall at home. He is complaining of dizziness and has a HR of 30. Further assessment reveals chronic digoxin toxicity and a concurrent UTI with acute renal failure. The patient requires management of his bradycardia and acute renal failure with specific management of chronic digoxin toxicity including a discussion with toxicology and administration of Digibind.

Download the case here: Geri EM Chronic Digoxin Toxicity

ECG for the case found here:

(ECG source: http://www.ems12lead.com/wp-content/uploads/sites/42/2014/01/digitalis_ECG.jpg)

CXR for the case found here:

normal cxr

(CXR source: https://radiopaedia.org/images/220869)

 

LVAD Case

This week’s case is written by Drs. Ashley Lubberdink and Sameer Sharif. Dr. Lubberdink is a PGY4 Emergency Medicine resident at McMaster University and is just beginning her fellowship in simulation and medical education. Dr. Sharif is a PGY5 Emergency Medicine resident at McMaster University who has just completed his fellowship in simulation and medical education.

Why it Matters

LVADs are pretty uncommon devices! If your practice location is not a hospital that inserts LVADs, then it is likely that you have never come across a patient with an LVAD. Without prior knowledge of these devices, it can be quite distressing trying to assess these patients. This case is designing to highlight the following:

  • LVAD patients do not have a pulse, a measurable blood pressure, or a detectable heart rate on the sat probe
  • To assess for blood pressure, one must insert an arterial line or use a blood pressure cuff and doppler U/S to obtain the MAP
  • Early after LVAD placement, drive line infection and bleeding are common complications
  • Call for help early! These patients generally have care providers who are available to help trouble shoot by phone at all hours of the day

More Reading

For more information on an approach to LVADs, we suggest the following sources:

https://emcrit.org/emcrit/left-ventricular-assist-devices-lvads-2/

https://canadiem.org/lvads-approach-ed/

Clinical Vignette

A 62-year-old male presents to your large community ED with a 1 day history of generalized malaise and nausea and a 2-hour history of palpitations. He is particularly concerned about his symptoms because last month he had an LVAD placed at your provinces’ major cardiac center (3 hours away) for stage 4 CHF. His wife is accompanying him but is currently parking the car.

Case Summary

A 62-year-old man presents to the ED with palpitations and general malaise. On initial assessment, the team finds out he had an LVAD placed within the last 1 month. The team will need to work through how to assess the patient’s vital signs appropriately and will discover the patient has a low MAP and a low-grade fever. On inspection, the patient’s drive line site will appear infected. The initial ECG will show features of hyperkalemia. After the initial assessment, the patient will progress to a PEA arrest requiring resuscitation by ACLS protocols. Labs will reveal an acute kidney injury and hyperkalemia. The patient will obtain ROSC when the hyperkalemia is treated.

Download the case here: LVAD Case

Initial ECG for the case found here:

hyperkalemia

(ECG source: https://lifeinthefastlane.com/ecg-library/basics/hyperkalaemia/)

Second ECG for the case found here:

hyperkalemia narrow QRS

(ECG source: https://lifeinthefastlane.com/ecg-library/basics/hyperkalaemia/)

CXR for the case found here:

LVAD-CXR

(CXR source: https://edecmo.org/additional-technologies/ventricular-assist-devices-vads/lvads/)

Picture of drive line site infection found here:

driveline infection A

(Picture source: http://journals.sagepub.com/doi/full/10.1177/1179065217714216)

Echo for case found here:

(Echo source: https://www.youtube.com/watch?v=-4ThAo4m2UI)

Pregnant Cardiomyopathy

This case is written by Drs. Nadia Primiani and Sev Perelman. They are both emergency physicians at Mount Sinai Hospital in Toronto. Dr. Primiani is the postgraduate education coordinator at the Schwartz/Reisman Emergency Centre. Dr. Perelman is the director of SIMSinai.

Why it Matters

Most emergency physicians have some degree of discomfort when a woman in her third trimester presents to the ED for any complaint. When that woman presents in acute distress, the discomfort is increased even further! This case takes learners through the management of a patient with a pregnancy-induced cardiomyopathy, reviewing:

  • The importance of calling for help early
  • The fact that all pregnant patients at term must be presumed to have difficult airways
  • That the treatment of the underlying medical condition is still the primary focus – in this case, BiPap, definitive airway management, and ultimately, inotropic support

Clinical Vignette

You are working in a community ED and your team has been called urgently by the nurse to see a 38 year old female who is G2P1 at 36 weeks gestational age. She was brought in by her sister, who is quite agitated and upset, saying “everybody has been ignoring her symptoms for the last 4 weeks.” The patient has just experienced a syncopal episode at home.

Case Summary

A 38-year-old female G2P1 at 36 weeks GA presents with acute on chronic respiratory distress in addition to chronic peripheral edema. She undergoes respiratory fatigue and hypoxia requiring intubation. She then becomes hypotensive which the team discovers is secondary to cardiogenic shock, requiring vasopressor infusion and consultation with Cardiology/ ICU.

Download the case here: Pregnant Cardiomyopathy

ECG for the case found here:

(ECG source: https://lifeinthefastlane.com/ecg-library/dilated-cardiomyopathy/)

 CXR for case found here:

posttestQ2pulmonaryedema

(CXR source: https://www.med-ed.virginia.edu/courses/rad/cxr/postquestions/posttest.html)

Cardiac Ultrasound for the case found here:

ezgif.com-optimize+(6)

(U/S source: http://www.thepocusatlas.com/echo/2hj4yjl0bcpxxokzzzoyip9mnz1ck5)

Lung U/S for the case found here:

Confluent+B+Lines

(U/S source: http://www.thepocusatlas.com/pulmonary/)

RUQ FAST U/S Image found here:

usruqneg

(U/S source: http://sinaiem.us/tutorials/fast/us-ruq-normal/)

OB U/S found here:

(U/S source: https://www.youtube.com/watch?v=SKKnTLqI_VM)

Pediatric SVT

This case is written by Drs. Laura Simone and Olivia Ostrow. They are both Pediatric Emergency Physicians at Toronto’s Sick Kids Hospital.

Why it Matters

SVT is the most common pediatric dysrhythmia that we see in the ED after sinus tachycardia. But sometimes, in very young children and infants, it can be hard to distinguish the two! This case highlights some important features of the management of SVT, including:

  • The need for an ECG when they heart rate is very high
  • The role of vagal maneuvers as a first attempt at cardioversion
  • The dosing of adenosine and electricity for cardioversion of SVT

Clinical Vignette

A 12-month old male is brought into your ED today by his parents because he has been fussy, crying all night and not feeding well today. He had emesis x 1 (non-bilious, non-bloody). At triage, the RN had difficulty recording the heart rate but by auscultation it seemed “quite rapid” and he “feels a bit warm”.

Case Summary

The team has been called to the ED after a 12-month old is brought in with a rapid heart rate. The team will realize the patient is in a stable SVT rhythm, with no response to either vagal maneuvers or adenosine. The patient will then progress to having an unstable SVT. If the SVT is defibrillated (i.e. – shocked without synchronization), the patient will progress to VT arrest. If the SVT is cardioverted, the patient will clinically improve.

Download the case here: Pediatric SVT

Initial ECG for the case found here:

SVT

(ECG source: http://hqmeded-ecg.blogspot.ca/2013/01/heart-rate-of-230-beats-per-minute.html)

Post-Cardioversion ECG for the case found here:

normal-sinus-rhythm (1)

(ECG source: http://lifeinthefastlane.com/ecg-library/sinus-tachycardia/)

VT ECG for the case found here:

VT

(ECG source: https://lifeinthefastlane.com/ecg-library/ventricular-tachycardia/)

 

Learner-Consultant Communication

This case was written by Dr. Jared Baylis. Jared is currently a PGY-4 in emergency medicine at UBC (Interior Site – Kelowna, BC) and is completing a simulation fellowship in Vancouver, BC.

Twitter – @baylis_jared + @KelownaEM

Why It Matters

Referral-consultant interactions occur with regularity in the emergency department. These interactions are critically important to safe and effective patient care. Several frameworks have been developed for teaching learners how to communicate during a consultation including the 5C, PIQUED, and CONSULT models. This case allows simulation educators to incorporate whichever consultation framework they prefer into a simulation scenario that allows deliberate practice of the consultation process.

Clinical Vignette

You are a junior resident working in a tertiary care centre and you are asked to see a 58-year-old female patient who was sent in from the cancer centre. She is known to have metastatic non-small-cell lung cancer and has been increasingly dyspneic with postural pre-syncope over the last few days. Her history is significant for a previous malignant pericardial effusion that was drained therapeutically a few months ago.

Case Summary

In this case, learners will be expected to recognize that this 58-year-old female patient with metastatic non-small-cell lung cancer has tamponade physiology secondary to a malignant pericardial effusion. The patient will stabilize somewhat with a gentle fluid bolus but the learners will be expected to urgently consult cardiology or cardiac/thoracic surgery (depending on the centre) for a pericardiocentesis and/or pericardial window.

Download the case here: Learner-Consultant Communication

Checklists for 5C, PIQUED, and CONSULT frameworks: Consult Framework Checklists

FOAMed article on 5C framework: 5C CanadiEM

FOAMed article on PIQUED framework: PIQUED CanadiEM

ECG for the case found here:

ECG

(ECG Source: https://lifeinthefastlane.com/ecg-library/basics/low-qrs-voltage/)

CXR for the case found here:

CXR

(CXR Source: https://radiopaedia.org)

POCUS for the case found here:

 

(Ultrasound Source: https://www.youtube.com/watch?v=qAlU8qhC1cU)