In this instructional video, Christina from nursing school of success explains metabolic alkalosis for nursing students. She defines the condition as a blood pH greater than 7.4, caused by either a loss of hydrogen ions (acid) or an excess of bicarbonate (base). The video highlights two critical physiological facts: hydrogen ions are found in urine and stomach acid, and large whole‑blood transfusions can raise bicarbonate levels. Christina then outlines the four exam‑focused causes that professors love to test: loss of urine via diuretics or increased aldosterone, loss of stomach acid through vomiting or suctioning, excessive bicarbonate intake, and massive whole‑blood transfusion. She also promotes a free arterial blood gas (ABG) cheat sheet and a step‑by‑step ABG interpretation video for further study. The tone is conversational and supportive, aimed at helping nursing students master ABG interpretation and improve grades.
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In this video, we're breaking down metabolic alkalosis so you can finally understand what it is, what causes it, and what you need to know about it for nursing school. Before we get started, make sure to hit that subscribe button and click on the notification bell so you never miss any other nursing school tips and tricks that I've got for you. Now, let's do it. Hey there, friend Christina here with nursing schoolofsuccess.com here to help you raise your grades and of course, have more free time in nursing school. So metabolic alkalosis is one of four main categories that you need to know about when you study arterial blood gases in nursing school. You've also got respiratory alkalosis, metabolic acidosis, and respiratory acidosis. We're going to talk about those other three in the other videos in this series. So if you need any help with those, be sure to check those other videos out after this. So metabolic alkalosis can mean two things. There is a decrease in the amount of acid in the body or there's too much base. Oftentimes these two go hand in hand. So it could actually be both of them that are causing this problem. But it really all comes down to one simple. The blood is more basic or more alkaline. And you can determine this by looking at the PH value of the blood. A normal PH value is between 7.35 to 7.45. When the pH is less than 7.4, it's more acidic. If the pH is greater than 7.4, it's MORE basic. And in the case of metabolic alkalosis, the PH is greater than 7.4 because. Because it's alkalosis, meaning it's more basic or alkaline. So here's what's happening. During metabolic alkalosis, the blood is becoming more basic because there is a decrease in hydrogen ions, which are acids, or there's an increase in bicarbonate, which is a base. Now, here's two key things that you need to know. These are really, really important because they will show up on your exam. So pay attention. Key point number one. Hydrogen ions are acids that we're talking found in the urine and in stomach acid. Those are the two places I want you to remember. Urine has acids and stomach acid is obviously an acid. Now, key point number two, giving a lot of whole blood to a patient can increase their bicarbonate level. Because of how the body processes that blood, parts of it get converted into bicarbonate. So here's how this all fits together and what professors just love to test you on the causes of metabolic alkalosis. Metabolic alkalosis is caused by urine being lost through diuretics or an increase in aldosterone, stomach acid being lost through things like vomiting or suctioning, too much intake of bicarbonate and a large amount of whole blood transfusion. So those are the four main causes of metabolic alkalosis that you need to remember. Now. If you're struggling with how to interpret ABGs or arterial blood gases in nursing school and just wish that someone would walk you through it, I've got a free cheat sheet just for you and a whole video where I walk you through arterial blood gas interpretation step by step. I put that link to the cheat sheet and that video down below in the description for you to check it out. And if this video helped you out friend and helped you understand metabolic alkalosis better, write love in the comments below. As always, I want to hear from you and I will catch you in the next video.
