{"id":977,"date":"2015-05-07T12:14:42","date_gmt":"2015-05-07T16:14:42","guid":{"rendered":"http:\/\/www.boatsmartexam.com\/?post_type=article&#038;p=334"},"modified":"2020-02-14T15:32:17","modified_gmt":"2020-02-14T15:32:17","slug":"hypothermia-and-cold-water-immersion","status":"publish","type":"article","link":"https:\/\/www.boatsmartexam.com\/knowledge-base\/article\/hypothermia-and-cold-water-immersion\/","title":{"rendered":"Hypothermia and Cold Water Immersion"},"content":{"rendered":"<h2>Hypothermia<\/h2>\n<p><a href=\"https:\/\/fast.wistia.net\/embed\/iframe\/u15d3k1dej?dnt=1&#038;popover=true\" class=\"wistia-popover[height=393,playerColor=7b796a,width=699]\"><img decoding=\"async\" data-original=\"https:\/\/embed-ssl.wistia.com\/deliveries\/08c008b9da9c71a900c5a88afd597fb11109f4aa.jpg?image_play_button=true&#038;image_play_button_color=7b796ae0&#038;image_crop_resized=600x338\" alt=\"\" \/><\/a><script charset=\"ISO-8859-1\" src=\"\/\/fast.wistia.com\/assets\/external\/popover-v1.js\"><\/script><\/p>\n<p>Hypothermia is a drop in core body temperature, caused by prolonged exposure to abnormally low temperatures, such as immersion into cold water.<\/p>\n<p><strong>Hypothermia can be caused by:<\/strong><\/p>\n<ul>\n<li>Immersion in cold water<\/li>\n<li>Exposure to cold air and wind while in water-soaked clothing<\/li>\n<li>Prolonged exposure to low water and air temperatures<\/li>\n<li>Hypothermia sets in when core body temperature drops below 35.0\u00b0 Celsius<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>Cold Water Shock<\/h2>\n<p><a href=\"\/wp-content\/uploads\/sites\/3\/2015\/03\/SurvivingColdWaterHero1.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-335\" src=\"\/wp-content\/uploads\/sites\/3\/2015\/03\/SurvivingColdWaterHero1-1024x576.jpg\" alt=\"Hypothermia and Cold Water Immersion\" width=\"700\" height=\"394\" \/><\/a><\/p>\n<p>Even more dangerous is cold water shock, which likely causes more fatalities than hypothermia. Cold water shock occurs when a person experiences sudden, unexpected immersion into water 15\u00b0 or below. For three to five minutes after sudden immersion in cold water, a person will gasp for breath and may also experience muscle spasms and a rise in heart rate and blood pressure. The instant muscle spasms and gasp reflex can cause the victim to involuntarily ingest water and drown. A rise in heart rate and blood pressure can result in a heart attack or stroke.<\/p>\n<p>&nbsp;<\/p>\n<h2>1-10-1<\/h2>\n<p>1-10-1 is a simple way to remember the first three phases of cold water immersion and the approximate time each phase takes.<\/p>\n<p><a href=\"\/wp-content\/uploads\/sites\/3\/2015\/03\/1Ten1-01HeroScaled1.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-336\" src=\"\/wp-content\/uploads\/sites\/3\/2015\/03\/1Ten1-01HeroScaled1-1024x576.jpg\" alt=\"Stages of cold water shock\" width=\"700\" height=\"394\" \/><\/a><\/p>\n<p><strong>1- Cold shock:<\/strong>\u00a0An initial deep and sudden gasp followed by hyperventilation and a rise in heart rate. Cold shock will pass in about one minute. During that time concentrate on avoiding panic and getting control of your breathing. Wearing a life jacket during this phase is critically important to keep you afloat and breathing.<\/p>\n<p><strong>10 &#8211; Cold incapacitation:<\/strong>\u00a0Over approximately the next ten minutes, you will lose the effective use of your fingers, arms and legs for any meaningful movement. Swim failure will occur within these critical minutes and if you are in the water without a life jacket, drowning will likely occur.<\/p>\n<p><strong>1- Hypothermia:<\/strong>\u00a0Even in ice water, it could take approximately one hour before becoming unconscious due to hypothermia. You should understand the techniques of how to delay hypothermia, self-rescue and calling for help in order to increase your chances of survival.<\/p>\n<p>Cold water can also paralyze your muscles instantly\u2013making it extremely difficult to put on a life jacket or PFD.<\/p>\n<p>It is important to remember that cold water shock can occur throughout the year, even during warm summer months when water temperatures can remain lower than outside air temperatures.<\/p>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","article-category":[13],"article-tag":[98,99,112,122,162,165],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v14.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hypothermia &amp; The Impact of Cold Water Immersion<\/title>\n<meta name=\"description\" content=\"An overview of the dangers of falling into cold water including cold water shock, the different stages of cold water immersion, and causes of hypothermia.\" \/>\n<meta name=\"robots\" content=\"index, follow\" \/>\n<meta name=\"googlebot\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta name=\"bingbot\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.boatsmartexam.com\/knowledge-base\/article\/hypothermia-and-cold-water-immersion\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hypothermia &amp; The Impact of Cold Water Immersion\" \/>\n<meta property=\"og:description\" content=\"An overview of the dangers of falling into cold water including cold water shock, the different stages of cold water immersion, and causes of hypothermia.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.boatsmartexam.com\/knowledge-base\/article\/hypothermia-and-cold-water-immersion\/\" \/>\n<meta property=\"og:site_name\" content=\"BOATsmart! 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