{"product_id":"rapid-id-ekg-ruler-combo-pack-horizontal","title":"Rapid ID - EKG \u0026 Ruler Combo Pack (Horizontal)","description":"\u003cul\u003e  \u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e EKG specific calculators for Heart Rate, PR, QRS and QT intervals  \u003c\/span\u003e\u003c\/li\u003e  \u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e Easy Heart Rate calculator with full readout of rate down to 30 beats per minute  \u003c\/span\u003e\u003c\/li\u003e  \u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e EKG Axis determination diagram  \u003c\/span\u003e\u003c\/li\u003e  \u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e Normal EKG values for P wave, PR interval, QRS duration, QT interval, QTC interval  \u003c\/span\u003e\u003c\/li\u003e  \u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e Diagrammatic representation of the EKG complex with areas or segments labeled to help you recognize the intervals  \u003c\/span\u003e\u003c\/li\u003e  \u003c\/ul\u003e\u003cbr\u003e\u003c!-- show up to 2 reviews by default --\u003e\n                       \u003cp\u003e    \u003cspan\u003eCombine our Rapid ID - Intervals and Measures with the pocket EKG ruler for all your EKG tracing needs. Measure EKG intervals, heart rates and QRS complex segments with this combo pack that contains a quick and easy way to measure heart rates down to 20 beats\/minute and heart rate pauses to 3 seconds on full 12-lead EKGs or rhythm strips. Standard reference ranges are provided for the P Wave, PR Interval, QTC Interval, ST Segment, and QRS Complex. The EKG ruler provides even more references for axis determination with detailed QRS segment normal values and locations.\u003c\/span\u003e    \u003c\/p\u003e","brand":"ARENAOX","offers":[{"title":"Default Title","offer_id":43214727348312,"sku":null,"price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/5603\/7208\/files\/71xckfDPfJL._AC_SL1500.jpg?v=1758075095","url":"https:\/\/arenaox.com\/products\/rapid-id-ekg-ruler-combo-pack-horizontal","provider":"ARENAOX","version":"1.0","type":"link"}