{"id":1618,"date":"2017-07-06T18:15:02","date_gmt":"2017-07-06T22:15:02","guid":{"rendered":"https:\/\/www.roshreview.com\/?p=1618"},"modified":"2017-07-06T18:15:02","modified_gmt":"2017-07-06T22:15:02","slug":"ep-27-hyperkalemia-blast-injuries-septic-arthritis-ankylosing-spondylitis-pediatric-airway-burn-resuscitation","status":"publish","type":"post","link":"https:\/\/www.roshreview.com\/blog\/ep-27-hyperkalemia-blast-injuries-septic-arthritis-ankylosing-spondylitis-pediatric-airway-burn-resuscitation\/","title":{"rendered":"Podcast Ep 27: Hyperkalemia, Blast Injuries &amp; More"},"content":{"rendered":"\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/media.blubrry.com\/thereveal\/s\/media.blubrry.com\/roshcast\/s\/content.blubrry.com\/roshcast\/Ep_27_Roshcast_Emergency_Board_Review.mp3\"><\/audio><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>It is during our darkest moments that we must focus to see the light.<\/p><cite>-Aristotle<\/cite><\/blockquote>\n\n\n\n<h6 class=\"wp-block-heading\">Welcome back to Episode 27 and a big welcome to all the new interns who are only about 1 week into residency! We hope you find Roshcast to be easy to listen to and helpful in your education. As we have said from the outset, we want this to be as high-yield as possible to not only improve your in-training scores but also improve your care at the bedside. We are open to any suggestions, so please reach out.<\/h6>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\">Let\u2019s get warmed up with a rapid review \u2013 this week, we are going over some HIV-related illnesses.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"201\" height=\"74\" src=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/RapidReview-2-e1475624722961.png\" alt=\"\" class=\"wp-image-818\" \/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Toxoplasmosis is rarely seen with CD4 &gt; 200. Be concerned in those with CD4 &lt; 100.<\/li><li>Toxoplasmosis is transmitted through cat feces. It is treated with pyrimethamine, sulfadiazine, and folinic acid.<\/li><li>The classic X-ray finding for PJP pneumonia is diffuse interstitial infiltrates in a \u201cbat wing\u201d appearance.<\/li><li>In PJP pneumonia, if the PaO2 is less than 70 or the A-a gradient is greater than 36, treat with steroids in addition to trimethoprim-sulfamethoxazole.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Now onto this week&#8217;s podcast<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><strong> 1<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"383\" src=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/Ep27-ECG-Hyperkalemia.jpg\" alt=\"\" class=\"wp-image-1623\" srcset=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/sites\/2\/Ep27-ECG-Hyperkalemia.jpg 640w, https:\/\/www.roshreview.com\/wp-content\/uploads\/sites\/2\/Ep27-ECG-Hyperkalemia-300x180.jpg 300w, https:\/\/www.roshreview.com\/wp-content\/uploads\/sites\/2\/Ep27-ECG-Hyperkalemia-600x359.jpg 600w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">A 67-year-old man with hypertension and end-stage renal disease presents after an incomplete dialysis session secondary to shortness of breath. His vital signs are BP 110\/95, HR 65, RR 22, T 37.3\u00b0C, and oxygen saturation 99% on 2L NC. You obtain the ECG shown above, which shows a widened QRS, almost resembling a sine wave. Which of the following is the most appropriate next step in this patient\u2019s management?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>A. Calcium gluconate <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>B. Cardiology consultation<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>C. Defibrillation<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>D. Transcutaneous pacing<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/Ep27-ECG-Changes-Hyperkalemia.jpg\">Teaching Image<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><strong> 2<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EMS calls notifying you that there is a mass casualty situation. There was an explosion at a construction site and they will be bringing 20 ambulatory, asymptomatic patients to your emergency department. After checking airway, breathing and circulation, what test, if normal, would allow you to rapidly discharge patients?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>A. Abdominal ultrasound <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>B. Ophthalmoscope evaluation of the eye <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>C. Otoscope evaluation of tympanic membranes<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>D. Oxygen saturation<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><strong> 3<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A 42-year-old woman with sickle cell anemia presents to the ED complaining of unilateral knee pain. You are worried she might have septic arthritis. Which of the following organisms is most likely to be responsible?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>A.<em> Pasturella multocida<\/em><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>B.<em> Pseudomonas aeruginosa<\/em><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>C. <em>Salmonella spp.<\/em><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>D. <em>Staphylococcus aureus<\/em><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/Ep27-Septic-Arthritis.png\">Teaching Image<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><strong> 4<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In which of the following spondyloarthropathies is uveitis the most common extra-articular manifestation?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>A. Ankylosing spondylitis<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>B. Fibromyalgia <\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>C. Psoriatic arthritis<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>D. Reactive arthritis<\/span><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><strong> 5<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At which location is the pediatric airway the narrowest?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>A. Cricoid<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>B. Epiglottis<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>C. Pharynx<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>D. Vocal cords<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/Ep27-Pediatric-Airway.png\">Teaching Image<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><strong> 6<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A 29-year-old man presents to the ED with partial-thickness burns to his entire back and right arm. The patient weights 70 kg. Based on the Parkland formula, how much crystalloid solution is required in the first 24 hours?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>A. 1,260 mL<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>B. 10,080 mL<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>C. 5,040 mL<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span>D. 7,560 mL<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/Ep27-Parkland-Formula.png\">Teaching Image<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"201\" height=\"74\" src=\"https:\/\/www.roshreview.com\/wp-content\/uploads\/RapidReview-2-e1475624722961.png\" alt=\"\" class=\"wp-image-818\" \/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>EKG changes<\/strong> seen in patients with <strong>hyperkalemia<\/strong> include <strong>peaked T waves<\/strong>, <strong>QRS widening<\/strong>, <strong>dropped P waves<\/strong>, and <strong>bradycardia<\/strong>.<\/li><li><strong>Temporizing measures<\/strong> for managing <strong>hyperkalemia<\/strong> include <strong>calcium<\/strong>, <strong>insulin<\/strong> <strong>and glucose<\/strong>, <strong>sodium bicarbonate<\/strong>, and <strong>albuterol<\/strong>.<\/li><li><strong>Furosemide<\/strong> and <strong>dialysis<\/strong> can be used to <strong>permanently<\/strong> <strong>remove<\/strong> <strong>potassium<\/strong> from the body.<\/li><li>For <strong>blast injuries<\/strong>, make sure to examine the <strong>tympanic membranes<\/strong>.&nbsp;They are damaged at lower pressures than other parts of the body.<\/li><li><strong>Primary blast injuries<\/strong> occur from blast <strong>overpressure<\/strong>. <strong>Secondary<\/strong> blast injuries are caused by <strong>flying debris<\/strong>. <strong>Tertiary<\/strong> blast injuries are caused by <strong>victims being thrown<\/strong>. And lastly, <strong>quaternary<\/strong> blast injuries are caused by <strong>environmental<\/strong> <strong>hazards<\/strong> <strong>caused by the explosion<\/strong>.<\/li><li>The <strong>most common cause<\/strong> of <strong>septic arthritis<\/strong> is <strong><em>Staphylococcus aureus<\/em><\/strong> in adults and children over 2, except for <strong>sexually<\/strong> <strong>active younger adults<\/strong>, in which case <strong><em>Neisseria gonorrhoeae<\/em><\/strong> is more common.<\/li><li>On <strong>joint aspirate<\/strong> of a <strong>septic joint<\/strong>, the <strong>white blood cell count<\/strong> is typically <strong>greater than 50,000<\/strong> and the aspirate appears <strong>purulent<\/strong>. &nbsp;Remember that if clinical suspicion is high, start <strong>antibiotics<\/strong>, <strong>consult an orthopedist<\/strong> early, and defer to the <strong>gram stain and culture for definitive diagnosis<\/strong>.<\/li><li>The most common extra-articular manifestation of <strong>ankylosing spondylitis<\/strong> is <strong>uveitis<\/strong>. &nbsp;<\/li><li>The <strong>narrowest<\/strong> part of the <strong>pediatric airway<\/strong> is the <strong>cricoid<\/strong>.<\/li><li>As compared to the adult airway, the <strong>pediatric airway<\/strong> has a <strong>proportionally smaller larynx,<\/strong> which is more anterior, the <strong>epiglottis is longer and narrower<\/strong>, the <strong>tongue is proportionally larger<\/strong>, the <strong>neck is typically shorter<\/strong>, and the <strong>adenoids are often larger<\/strong>.<\/li><li>The <strong>pediatric endotracheal tube<\/strong> should be placed to a <strong>depth of 3 x the endotracheal tube size<\/strong>.<\/li><li>The <strong>parkland formula<\/strong> can be calculated by the formula <strong>4 x % TBSA burned x weight (kg)<\/strong>. &nbsp;Give the first half in the first 8 hours and the second half over the next 16 hours.<\/li><li>Although, the parkland formula is a good guide, <strong>fluid resuscitation<\/strong> in <strong>burns<\/strong> should ultimately be <strong>guided by vital signs and<\/strong> <strong>urine output<\/strong>. &nbsp;In <strong>children<\/strong>, <strong>target 1\u20132 mL\/kg\/hr<\/strong>, and in <strong>adults<\/strong>, <strong>target 30 mL\/hr<\/strong>.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">That wraps up Episode 27. From blast injuries to hyperkalemia, we have covered the entire spectrum of emergency medicine this week. Hope you enjoyed. Do not forget to listen for the trauma phone ring tone in the coming weeks for a chance to win a Rosh Review Subscription. Remember to tweet <a href=\"https:\/\/twitter.com\/roshcast\">@Roshcast<\/a> or email <a href=\"mailto:Roshcast@roshreview.com)\">Roshcast@roshreview.com<\/a> the exact time when you hear the ring to win the prize.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Until next time,<br>Jeff and Nachi<\/p>\n","protected":false},"excerpt":{"rendered":"<p>It is during our darkest moments that we must focus to see the light. -Aristotle Welcome back to Episode 27 and a big welcome to all the new interns who are only about 1 week into residency! We hope you find Roshcast to be easy to listen to and helpful in your education. As we <a href=\"https:\/\/www.roshreview.com\/blog\/ep-27-hyperkalemia-blast-injuries-septic-arthritis-ankylosing-spondylitis-pediatric-airway-burn-resuscitation\/\">read more&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":851,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2025,1999],"tags":[2084,2112,2115,2153,2164,2255,2289,2309,2314,2330,2459,2504,2536,2563,2599,2608,2671,2672,2687,2733,2834,2873,2886,2921,2941,3097,3102,3168,3180,3233,3248,3249,3265,3418,3425,3471,3524,3546,3575,3661,3691,3722],"coauthors":[],"class_list":["post-1618","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-emergency-medicine","category-podcast","tag-adenoids","tag-airway","tag-albuterol","tag-ankylosing-spondylitis","tag-antibiotics","tag-blast-injuries","tag-bradycardia","tag-burns","tag-calcium","tag-cardiology","tag-critical-care","tag-dialysis","tag-dropped-p-waves","tag-ekg","tag-endotracheal-tube","tag-epiglottis","tag-fluid-resuscitation","tag-flying-debris","tag-furosemide","tag-gram-stain","tag-hyperkalemia","tag-infectious-diseases","tag-insulin-and-glucose","tag-joint-aspirates","tag-larynx","tag-neck","tag-neisseria-gonorrhoeae","tag-orthopedics","tag-overpressure","tag-parkland-formula","tag-peaked-t-waves","tag-pediatric-airway","tag-pediatrics","tag-purulent","tag-qrs-widening","tag-rheumatology","tag-septic-arthritis","tag-sodium-bicarbonate","tag-staphylococcus-aureus","tag-tongue","tag-tympanic-membrane","tag-uveitis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Podcast Ep 27: Hyperkalemia, Blast Injuries &amp; More | RoshReview.com<\/title>\n<meta name=\"description\" content=\"Welcome to RoshCast (Ep. 27), the first question and answer style emergency medicine podcast. Listen and learn more.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.roshreview.com\/blog\/ep-27-hyperkalemia-blast-injuries-septic-arthritis-ankylosing-spondylitis-pediatric-airway-burn-resuscitation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Podcast Ep 27: Hyperkalemia, Blast Injuries &amp; More\" \/>\n<meta property=\"og:description\" content=\"Welcome to RoshCast (Ep. 27), the first question and answer style emergency medicine podcast. 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