The average glucose reading for both days is 151 mg/dL, so the target range for the standard deviation is ≤50 mg/dL. The example for day one has the standard deviation at ±36 mg/dL, which is in the target zone. The example for day two has the standard deviation at ±72 mg/dL, which is outside the target zone.
Full Answer
What is a good standard deviation for blood sugar?
So, if your mean blood sugar were 120 mg/dl, you would want your standard deviation to be no more than 40 mg/dl, or one-third of the mean.
What is the target SD for blood glucose test?
For instance, for someone with a mean glucose of 180 mg/dl, the target SD is 60 mg/dl or less. For a mean glucose of 150 mg/dl, SD would ideally be under 50 mg/dl. (Some find it easier to multiply in the other direction: SD x 3 should be smaller than mean glucose.)
What is “mean glucose?
“Mean glucose” is another way of saying “average glucose.” It’s an overall measure of blood sugars over a period of time, offering a single high-level view of where glucose has been. A lower mean glucose often indicates fewer high blood sugars; however, it can also indicate a lot of low blood sugars (hypoglycemia) are occurring.
What is the difference between SDSD and CV for glucose variability?
SD and CV are two statistical values that provide a different lens to look at glucose variability, similar in a way to time-in-range (TIR) numbers. “SD” is shorthand for “standard deviation,” which is a measure of the spread in glucose readings around the average – some call this the variation.
What is standard deviation for glucose?
For a mean glucose of 150 mg/dl, SD would ideally be under 50 mg/dl. (Some find it easier to multiply in the other direction: SD x 3 should be smaller than mean glucose.)
What is deviation in mySugr app?
If your standard deviation equals or is less than that number you're in the target zone. (In the mySugr app the color of the standard deviation indicates whether it's in the target zone. Green means that it is in the target zone and red means it is not.)
How is glucose standard calculated?
Calculate the concentration of glucose in each tube using the following equation and record it in your assignment: V1C1 = V2C2 Where V1 = volume of the stock solution C1 = the concentration of the stock solution V2 = the final diluted volume (volume of stock solution and diluent) C2 = the final diluted concentration.
What is the standard rate for glucose?
A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A reading of more than 200 mg/dL (11.1 mmol/L) after two hours indicates diabetes.
How do I calculate standard deviation?
Step 1: Find the mean. Step 2: For each data point, find the square of its distance to the mean. Step 3: Sum the values from Step 2. Step 4: Divide by the number of data points.
What is a good standard deviation?
Statisticians have determined that values no greater than plus or minus 2 SD represent measurements that are are closer to the true value than those that fall in the area greater than ± 2SD. Thus, most QC programs require that corrective action be initiated for data points routinely outside of the ±2SD range.
How do you calculate the concentration of glucose?
2:388:24Determining Glucose Concentration using a Calibration Curve - YouTubeYouTubeStart of suggested clipEnd of suggested clipAdd two centimeters cubed of each concentration to the corresponding boiling tubes you will alsoMoreAdd two centimeters cubed of each concentration to the corresponding boiling tubes you will also need to add two centimeters cubed of the unknown. Solution. And two centimeters cubed of the distilled.
What is a good standard deviation for diabetics?
Hirsch suggests that diabetics should aim for an SD of one-third of their mean blood sugar. So, if your mean blood sugar were 120 mg/dl, you would want your standard deviation to be no more than 40 mg/dl, or one-third of the mean.
What is the treatment of diabetes?
For some people with type 2 diabetes, diet and exercise are enough to keep the disease under control. Other people need medication, which may include insulin and an oral drug. Drugs for type 2 diabetes work in different ways to bring blood sugar levels back to normal.
What is the best treatment for diabetes?
Metformin is generally the preferred initial medication for treating type 2 diabetes unless there's a specific reason not to use it. Metformin is effective, safe, and inexpensive. It may reduce the risk of cardiovascular events. Metformin also has beneficial effects when it comes to reducing A1C results.
What is 5.3 mmol in mg dL?
mg/dL in mmol/L, conversion factor: 1 mg/dL = 0.0555 mmol/Lmg/dl95180mmol/L5.310.0
Why is it important to keep glucose levels within a narrow range?
By keeping glucose levels within a narrow range you are more likely to avoid developing complications from diabetes or experience the mood and cognition disruptions that come with extremely high or low glucose levels.
How to get a complete picture of your glucose levels?
In order to get a more complete picture of your blood glucose levels, you need to look beyond a single-number reading to a measurement that gives a sense of how much your blood glucose levels vary in a day, week, month, or quarter. You need to consider the standard deviation of your blood glucose readings.
Why does it matter if your glucose readings are close together?
Why does it matter if my glucose readings are close together or far apart? In the long term, wide swings in glucose levels are linked to causing damage to small blood vessels (microvascular damage) and a greater likelihood of developing health complications. Microvascular damage can lead to serious complications.
What does a large swing in glucose mean?
Large swings in glucose values can result in the same average as values that are more steady, which can be misleading at first glance. Paying attention to your standard deviation shows whether the average is made up from readings that are relatively stable and close together, or swinging more wildly up and down.
Can high glucose cause a seizure?
At its very worst, hypoglycemia can cause fainting or seizure.
Does mysugr provide medical advice?
The mySugr website does not provide medical or legal advice. mySugr blog articles are not scientific articles, but intended for informational purposes only. Medical or nutritional information on the mySugr website is not intended to replace professional medical advice, diagnosis or treatment.
Is A1C a static image?
Each A1C result gives you a little long picture, but it’s still a static image. Standard deviation conveys a more nuanced picture—one that reflects the fluctuations in blood glucose levels and gives some indication of the likelihood of developing microvascular damage.
What does a lower mean glucose mean?
A lower mean glucose often indicates fewer high blood sugars; however, it can also indicate a lot of low blood sugars (hypoglycemia) are occurring. Many experts look for a mean glucose of less than 154 mg/dl in adults with diabetes, which approximates to an A1C less than 7% (the target in the USA).
What was Adam's glucose level before CGM?
high-carb. On October 15 th, Adam’s mean glucose was 123 mg/dl, but his day was full of exhausting ups and downs.
What is the A1C of a diabetic?
For those wondering, in people without diabetes, mean glucose is typically 100 mg/dl or less, which corresponds to an A1C of less than 5.7% (the cutoff for diagnosing prediabetes). The cutoff for diagnosing diabetes is an A1C of 6.5%, corresponding to a mean glucose of roughly 135 mg/dl.
Why is glucose monitoring important?
Glucose monitoring is one of the most important tools in diabetes. Just like a speedometer in a car, glucose data helps inform key actions in diabetes – take more or less medication, change food choices or timing, exercise, and more.
What happens if your blood sugar is 100 mg/dl?
If mean glucose is 100 mg/dl and someone is experiencing many low blood sugars (hypoglycemia) every day of the week, changes are needed too – e.g., closer attention to when the hypoglycemia is happening in order to determine the best action, such as differently timed exercise or a lower medication dose.
What does high standard deviation mean?
For instance: An above-target average glucose (e.g., 180 mg/dl) and high standard deviation (70 mg/dl) would indicate much of the day is spent at a very high blood sugar.
What are the factors that affect blood sugar?
Food, exercise, stress, sleep, and medication are just a few of the many factors that can directly influence your blood sugar. While average glucose, SD, and CV will provide insight into your diabetes, remember they are not tests with a pass or fail grade.
How to check glucose variability?
This is the percentage of time during the day that you stay between 70 and 180 mg/dL. The more time ( ie, a higher percentage) spent in this range, the less time spent having highs and lows . For reference, each 1% of the day is about 15 minutes.
What is the average CGM glucose?
The American Association of Clinical Endocrinologists recommends an average CGM glucose of 140 mg/dL ( 7.8 mmol/ L, A1c of ~6.5%) or less without frequent hypoglycemia.
Why do I need higher glucose targets?
A young child usually requires higher glucose targets than an adult because of their smaller insulin doses, greater sensitivity to insulin, and more variability in eating and activity. Likewise, adults in higher-risk professions like charge nurse, firefighter, or truck driver, or a person who lives alone or has hypoglycemia unawareness will often require higher targets. Because AIDs suspend basal insulin delivery before you go low, they often let you set a lower glucose target.
What is the goal of a glucose monitor?
Your goal is to have relatively normal glucose values that are as steady as possible. Min imize glucose variability as this puts a lot of physical stress on your body during daily life.
What is the AGP?
A great glucose tool called the AGP was developed by the International Diabetes Center in Minnesota. The AGP provides you and your clinician with a standard visual format of your glucose data that maximizes meaningful clinical assessments and decisions. The report shown here comes from the Dexcom CLARITY software.
What is the CV of a diabetic?
1. However, another research study looked at 112 people with Type 1 diabetes whose CVs ranged between 11% and 56%.
Can you test glucose without a CGM?
You can succeed without a CGM if you test with a meter 6 or more times a day during this tune-up period, and track your glucose values using a graphical chart like the Smart Chart that is also available in an easy to carry 31- day Checkbook Format .