One of the most common and important imbalances you will learn in nursing school is related to blood glucose levels, which can be too high or too low. In this article, we’ll be talking about the nursing management of hypoglycemia. Show How does blood glucose work? Glucose is a main energy source in the body and THE main source of fuel in the brain. For this reason, the body works very hard to keep blood glucose levels within a consistent range. When we fall below that range, we have hypoglycemia, and when blood glucose is too high, this is hyperglycemia. When blood sugar is elevated (such as after eating a meal), the beta cells of the pancreas release the hormone insulin. Insulin acts like a key to unlock the cells, allowing glucose to enter and provide energy to that cell. If there is excess glucose available, the body stores this as glycogen in muscles and the liver. As blood sugar levels drop, alpha cells in the pancreas secrete glucagon. This signals the liver to break down the glycogen, converting it back into glucose. A healthy liver can also make glucose from amino acids, fats and waste products. Because of the liver’s role in maintaining blood glucose levels, patients with severe liver disease often have persistent hypoglycemia and may require a continuous dextrose infusion. What causes hypoglycemia? Hypoglycemia is present when the blood glucose level is less than 70 mg/dL. It most often occurs in individuals with diabetes due to decreased oral intake, exercising more than usual, or incorrect use of insulin and other medications used to treat diabetes. It can also occur due to:
Now that you have an understanding of hypoglycemia and what causes it, let’s go through hypoglycemia using the Straight A Nursing LATTE method. If you’re new to this method, you can learn about it and get a template to use here. L: How does the patient LOOK?The signs/symptoms of hypoglycemia typically begin to show when blood glucose levels are around 55 mg/dL, though this will vary by individual. The key signs/symptoms include shakiness, tachycardia, diaphoresis, anxiety, hunger, irritability, fatigue and pale skin. The patient may also report numbness/tingling of the face or tongue. As the blood glucose level decreases, the patient can have blurred vision, become increasingly confused, and lose consciousness or have seizures. Note that patients taking beta blockers may not show some of the outward signs of hypoglycemia due to the medication preventing tremors and tachycardia from occurring. A: How do you ASSESS the patient?A key component of the nursing management of hypoglycemia is your assessment of the patient and recognition that you need to intervene. Assess all patients at risk for blood glucose abnormalities for:
T: What TESTS will be conducted?Blood glucose can be measured at the bedside with a glucometer, which is capable of reading levels within a specific range. This range will vary by the device used. If the blood glucose level falls below or above this range, the device simply displays a value of “low” or “high”. If the blood glucose level is not detectable by the glucometer, it will need to be measured via a traditional lab draw. If the cause of the hypoglycemia is related to an endocrine, hepatic or renal disorder, lab tests specific to those conditions will be obtained. T: What TREATMENTS will be provided?The most important component of the nursing management of hypoglycemia is providing glucose. How the glucose is administered depends on the patient’s level of consciousness and how low the blood glucose level is. In the clinical setting, a typical hypoglycemia protocol looks like this and will vary based on the blood glucose level:
If the hypoglycemia is occurring due to an underlying condition, that condition should be addressed. For example:
E: How will you EDUCATE the patient/family?Since hypoglycemia often occurs with diabetes, you want to ensure all patients with diabetes receive adequate education on their disease process, dietary modifications, how to test their blood sugar, and how to take medications. In addition:
Your key takeaways for the nursing management of hypoglycemia are:
Drill this information in by listening to it in episode 191 of the Straight A Nursing podcast. Remember to subscribe so you never a miss an episode! References: American Diabetes Association. (n.d.). Hyperglycemia (High blood glucose). American Diabetes Association. https://www.diabetes.org/healthy-living/medication-treatments/blood-glucose-testing-and-control/hyperglycemia Busti, A. J. (2015, October). How diabetics taking beta blockers still sweat with hypoglycemia. Evidence-Based Medicine Consult. https://www.ebmconsult.com/articles/diabetics-beta-blockers-hypoglycemia-sweating-sympathetic#:~:text=Therefore%2C%20beta%2Dblockers%20are%20not,use%20to%20recognize%20hypoglycemic%20episodes Davis’s Drug Guide. (n.d.). Acarbose (Precose) | davis’s drug guide. Davis’s Drug Guide. https://www.drugguide.com/ddo/view/Davis-Drug-Guide/51003/all/acarbose?refer=true Diabetes Teaching Center at UCSF. (n.d.). The liver & blood sugar. Diabetes Teaching Center at UCSF. https://dtc.ucsf.edu/types-of-diabetes/type1/understanding-type-1-diabetes/how-the-body-processes-sugar/the-liver-blood-sugar/#:~:text=The%20liver%20supplies%20sugar%20or,This%20process%20is%20called%20gluconeogenesis. Mayo Clinic. (2020, March 13). Hypoglycemia—Symptoms and causes. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/hypoglycemia/symptoms-causes/syc-20373685 Medline Plus. (2020). Drug-induced low blood sugar. MedlinePlus Medical Encyclopedia. https://medlineplus.gov/ency/article/000310.htm |