{"id":2791,"date":"2025-02-24T16:39:06","date_gmt":"2025-02-25T00:39:06","guid":{"rendered":"https:\/\/www.nicolekupchikconsulting.com\/news\/?p=2791"},"modified":"2025-07-01T13:03:51","modified_gmt":"2025-07-01T21:03:51","slug":"step-by-step-nurses-guide-to-measure-a-cvp-rap","status":"publish","type":"post","link":"https:\/\/www.nicolekupchikconsulting.com\/news\/step-by-step-nurses-guide-to-measure-a-cvp-rap\/","title":{"rendered":"Step by Step Nurses’ Guide to Measure a CVP\/RAP"},"content":{"rendered":"\n

So, it\u2019s the middle of the night and your provider asks you to get a CVP on your patient.  You think to yourself, \u201cI haven\u2019t done one since orientation. How do I do that again?\u201d  Fear not, we got you, bestie.<\/p>\n\n\n\n

First of all, what is a CVP?  A CVP stands for Central Venous Pressure, and it measures the fluid status on the right side of the heart or the right heart preload.  The normal value is 2 – 6 mm Hg.   You may also see the CVP referred to as the RAP, which stands for Right Atrial Pressure.  It\u2019s the same thing.<\/p>\n\n\n\n

Here is a normal CVP tracing.  CVP tracings are atrial tracings with an A, C, and a V waveform.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

How to measure a CVP – <\/strong><\/p>\n\n\n\n

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  1. Make sure the patient has a central line.<\/li>\n\n\n\n
  2. Hook your distal lumen (with the clave removed) to a pressure monitoring system.\u00a0<\/li>\n\n\n\n
  3. Perform a square wave test to assess if the system is dampened.\u00a0 Make sure the system doesn\u2019t have any kinks or obstructions.\u00a0 When priming the system, do it while your fluid is not on a pressure bag to avoid any microbubbles in your tubing. Microbubbles will dampen the system.<\/li>\n\n\n\n
  4. Zero and level the system to the patient\u2019s phlebostatic axis, which is the 4th intercostal space mid-anterior posterior of the chest wall.\u00a0 HOB can range between 0 – 45 degrees.<\/li>\n\n\n\n
  5. Press freeze waves on your cardiac monitoring system.<\/li>\n\n\n\n
  6. Read your CVP tracing at the end of expiration.<\/li>\n\n\n\n
  7. Identify the end of the PR interval on your EKG strip and follow it down to the CVP tracing.\u00a0 This is the A wave.\u00a0 Bisect the A wave to find the CVP value.\u00a0 Alternatively, you can take the top of the A wave and the bottom of the A wave, add them together, and divide them in half.\u00a0<\/li>\n\n\n\n
  8. If your patient is in atrial fibrillation, use the Z-point method.\u00a0 Go to the end of QRS and follow it directly down to your CVP waveform.\u00a0 Where it intersects with the CVP tracing is your CVP.<\/li>\n<\/ol>\n\n\n\n

    Would you like more information on hemodynamic monitoring or tips for Critical Care?<\/p>\n\n\n\n