11/14/2023 0 Comments Peaked t waves in hyperkalemia![]() ![]() Sending a VBG is the fastest way to get a sodium, potassium, glucose, and free calcium level at my hospital with a turn-around time of 15 minutes or less. If hyperkalemia is suspected and you don’t have point of care testing, the fastest way to get the serum potassium is to send a venous blood gas (VBG) sample to the lab for analysis. Note the T waves remain peaked but the P waves and QRS interval have normalized: Don’t bother trying to learn at which level of potassium the ECG changes occur – the changes do not correlate well with the serum potassium concentration.Īn ECG from a patient with a serum potassium of 7.5 with flattened P waves, widened QRS interval, and peaked T waves:Īn ECG from the same patient after correction of the serum potassium has begun. The P wave may disappear, and ultimately the QRS widens further to a sine wave until asystole occurs. While a patient with severe hyperkalemia can progress from any level of ECG change to ventricular tachycardia / ventricular fibrillation / asystole, in general a peaked T wave with shortened QT interval is the earliest change, followed by progressive lengthening of the PR interval and QRS duration. In a patient without chronically high potassium, a value lower than 7 may still have severe consequences. Severe hyperkalemia can be recognized by cardiac conduction abnormalities on ECG, muscle weakness / paralysis, or a serum potassium value greater than 7. Please do not copy this quiz directly however, please feel free to share a link to this page with students, friends, and others.Subscribe on iTunes, Android, or Stitcher Please refer to the latest NCLEX review books for the latest updates in nursing. *Disclaimer: While we do our best to provide students with accurate and in-depth study quizzes, this quiz/test is for educational and entertainment purposes only. ![]() You can also take more fun nursing quizzes. Scroll down to see your results.)ĭon’t forget to tell your friends about this quiz by sharing it your Facebook, Twitter, and other social media. (NOTE: When you hit submit, it will refresh this same page. None the patient will likely stay on the Lasix Which medication will the patient most likely be switched to?ī. Which of the following would you expect to be order for this patient?Ī patient with a potassium level of 2.1 has been taking Lasix daily. Widened QRS complex and prolonged PR intervalĪ patient has a potassium level of 2.0. Prolonged ST interval and Widened T waveĭ. Which of the following is indicative of an EKG change in a case of hypokalemia?ī. Patient presenting with painful muscle spasms and positive Trousseau’s sign Patient with Cushing’s syndrome taking Laxis 20 mg IV twice a dayĭ. Which patient is at a potential risk for Digoxin toxicity?ī. Which of the following findings would explain the patient’s condition? In addition, the patient has been having frequent episodes of vomiting and nausea and is taking hydrochlorothiazide. Turn off the nasogastric suctioning and administered a laxativeĪ patient is presenting with an orthostatic blood pressure of 80/40 when she stands up, thready and weak pulse of 58, and shallow respirations. Hold the dose of Lasix and notify the doctor for further ordersĭ. Administered the Lasix and notify the doctor for further ordersĬ. No intervention is need the potassium level is within normal rangeī. Which of the following options is correct?Ī. The patient is ordered a morning dose of Lasix 20mg IV. Which foods would you encourage the patient to consume?Ī patient with nasogastric suctioning is experiencing diarrhea. Which of the following patients is at risk for hyperkalemia?Ī patient’s potassium level is 3.0. Tall peaked T waves, flat P waves, prolonged PR intervals and widened QRS complexes can present in which of the following conditions? Which of the following is not a symptom of hyperkalemia? Place patient on a potassium restrictive diet Prepare the patient for dialysis and place the patient on a cardiac monitorĬ. Which of the following interventions is priority?Ī. Quiz on Hyperkalemia & HypokalemiaĪ patient has a potassium level of 9.0. Don’t forget to share this quiz with your friends! Please do not re-post on other websites, however. In addition, below this quiz is a layout of the quiz with an answer key (if you wanted to print off the quiz.just copy and paste it). After you are done taking the quiz and click submit, the page will refresh and you will need to scroll down to see what you got right and wrong. ![]()
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