Magnesium and Cardiac Action Potential

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Magnesium (Mg++) is the second most abundant intracellular ion. Normal Serum Mg++ is 1.8 to 2.5 mg/dL or .8 to 1.5 mmol/L (millimoles per liter) (This values may vary depending on sources)  Keep in mind, the Mg++ concentration in the average adult is approximately 25g, but most of our Mg++ is found in bones and […]

74 Year Old Male: Chest Discomfort

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  It’s a sunny winter afternoon when you and your partner are called to a local doctor’s office for an “adult male- possible heart”. When you arrive, you are led into room #3 where you find a 74 year old male, in no apparent distress. His color looks good. You introduce yourself, and find out […]

Conclusion to Snapshot Case: 44 Year Old Male – Chest Tightness

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This is the conclusion to the Snapshot Case located here. You may want to review the initial description again. As many readers correctly pointed out, this patient is experiencing a STEMI. Let's start with the basics and work our way up to some pretty advanced topics. First, there is anterior ST-elevation with upwardly-concave T-waves, as […]

All that wiggles isn’t Wellens’

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   This is the discussion for our Snapshot Case involving a 45 year old female complaining of chest pain. Here is the 12 lead for review:                           There is sinus rhythm at about 75 bpm, with a slightly leftward axis. Slight ST elevation […]

Snapshot Case: 44 Year Old Male – Chest Tightness

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Here's a new "Snapshot" case courtesy of Dr. Bojana Uzelac from Serbia… A 44 year old male presents with a chief complaint of tightness in his chest x 1 hour. He was on his way to a conference when it started and states: "It feels kind of like asthma. I've never been diagnosed but I […]

CONCLUSION: 87YOM COMPLAINING OF CHEST DISCOMFORT AND DYSPNEA

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This is the conclusion of the previous case: http://ems12lead.com/2014/01/87-yom-complaining-of-chest-pain-and-dyspnea/ So, as mentioned before, you obtain this 12 lead ECG: A few minutes later, the LIFEPAK 15 prints out another 12 lead ECG: Although the computer suggests Atrial fibrillation, this irregular tachycardia has a group beating pattern with presence of P waves prior the QRS complexes […]

87 YOM COMPLAINING OF CHEST DISCOMFORT AND DYSPNEA

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 On a Thurday morning, approximately 02:15 hrs, in a small rural town, your EMS unit is dispatched to a residence for an 87 year old male with difficutly breathing.   You arrive on scene before the fire engine and enter the residence. Upon entering the bedroom, you find an elderly male, sitting on the edge of the bed, vomiting. He is […]

Snapshot Case: 45 Year Old Female–Chest Pain

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  Here is the latest from our "Snapshot" case collection..  This ECG was taken from a 45 year old female patient who had "off and on" chest pain for about 24 hours. The discomfort radiated to her left arm, and she complained of some "dizziness".  She denies any associated SOB, or N/V.  The discomfort worsened over […]

PULMONARY PRESSURES AND ECG PATTERNS

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    Ok, so we understand the basics of our Cardiopulmonary System for the most part, at least most of us reading this.  But, if you don’t, DON’T WORRY, we can break it down in a few simple steps, so… Here ya go!!!   The Right Ventricle (RV) pumps blood to the lungs via the Main Pulmonary […]

63 Year Old Female, CC: Neck and Arm Pain–Discussion

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  This is the discussion for our recent case 63 Year Old Female, CC: Neck and Arm Pain. Let's revisit the 12 Lead ECG: There "appears" to be a Sinus Brady rhythm at a rate of about 52 bpm, with a first degree AVB. The rhythm is regular for the first half of the ECG, then […]

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EMS 12-Lead

Cardiac Rhythm Analysis, 12-Lead ECG Interpretation, Resuscitation

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