Highest Blood Sugar Reading?

By diabetesfree Latest Reply 2015-03-02 12:45:15 -0600
Started 2011-05-13 03:26:52 -0500

I am just curious as to how badly other people's blood sugar levels have gotten. I've had mine register at over 600 at times. In fact, my meter wouldn't even give me an exact reading. It just said "HI". Scary. So, what is the highest your blood glucose level has ever gotten, and did you require any medical attention?

299 replies

Anonymous 2015-03-02 12:45:15 -0600 Report

iv been 1500 without going into a coma that is when i fond out that i had diabetes i became a diabetic when i was 17 and a half it was two week be for my 18th birth day

Papanna 2015-02-10 03:46:48 -0600 Report

I am wonder most of members posted their Blodsugar FBS is more than 300 ? Isit any problems and or any complication arise and noticed ? My self is maximum for FBS is 155-160 and PPBS is maximum 180 noticed rearly generally My FBS is 98 -112 rearly 125-145 and PPBS is 110- 145 rearly 170-182

ssawyer57 2015-01-24 15:12:21 -0600 Report

When I was diagnosed a month ago my bg was 457 and my A1C was 11. I'm now on 1500mg of Metformin a day. My highest recently was 267 after I had pizza. No more pizza for me!!!

Q&A 2015-01-24 15:04:05 -0600 Report

My highest blood sugar was when I was first diagnosed, it was 777 and the doctor said " hey, you could play that in Vegas." Then I was rushed to Vanderbilt.

Beca1 2014-12-15 07:33:13 -0600 Report

This may sound like nothing but for me it blew me away. I am new to this so have been testing my BG levels for three months now, it goes from 108 to 166, I am on the cusp of pre-diabetic - type 2, but once I had 4 sips of beer with a meal and it shot up to 190. Another time I had 2 rootbeers along with salsa and chips and two tacos and my reading was 275. This is why it is so darn important to test your BG "before" and "after" a meal to see What that food and drinks are doing to your body. Too large of meals, too much carbs or sugar, even skipping meals, having inflammation in your body, being stressed or ill, fighting a cold, all affects our BG levels. So be very mindful of what, when, how you are eating or Not eating. If I were you get another monitor they are giving free ones out on this site and Amazon, your monitor could be glitchy. Hope this helps.

Yari63 2014-11-15 06:54:38 -0600 Report

My blood sugar level at diagnosis was recorded at 127 mmol/L or 2286 mg/dL on the 25/12/1996, memorable Christmas for a kid. While this isn't the highest I've heard of, it's definitely up there and I'm thankful I'm still here.

BreC 2014-11-06 17:22:33 -0600 Report

When I was first dx'd mine was 892 and my A1C was 17. The A1C chart only goes up to 13, or that is what I was told. I was admitted into hospital and given Coumadin shots.

Machetesgirl 2014-11-04 07:15:51 -0600 Report

right now i just tested my blood sugar and its over 600 i dont know what to do .i dont feel any different except for a little headache any suggestions

jayabee52 2014-11-04 10:27:15 -0600 Report

Howdy MG
A BG level above 600 is nothing to fool with. I would urge you to go to the ER ASAP. You could stroke out with such a high BG level.

My late wife would occasionally have BG levels over 600. We called the advise line for the hospital and they urged us to come in asap.
They put her on an intravenous insulin drip and we stayed there until her BG was in an acceptable range, and then was released. That was one long night for us both.

With a BG level that high one's blood thickens and can cause strokes or TIAs (ministrokes) so don't delay.

Praying for you!


Papanna 2015-02-10 03:54:19 -0600 Report

I think For FBS normal value given70-100 and PPBS 100-140 is normal value for the persons fordiabetic noticed FBS not more than 120-140 and PPBS not more than 160 this number no diabeti c complication like neuropathy BP increases retinpathyand heart attack kidney damages noticed if above numbersmore found there may be some complication starts it is good to take immediately Doctors advise andcheck up

rontexas2 2014-10-25 10:59:06 -0500 Report

I self diagnosed before seeing my physician at 540. Was traveling a lot on business when in Colorado I started symptoms but everyone said it was high altitude. Next week in Houston TX (below sea level) and same symptoms; then walked to a drug store and bought a glucometer!! I work in health care and recognized the symptoms.

ohemgeeSammary 2014-10-20 02:03:24 -0500 Report

i probably have the worst. 19yrs ago, when i was 4, i was rushed to the er for frequent trips to the bathroom and drinking way more than a 4yr old can hold… at the hospital i passed out screaming for my dad and fell into a coma for a week. dr's find i had diabetes and my bg was 1600! i barely made it/came out of the coma. it's all a blur to me honestly being so long ago and at that age, but dr's called me a "miracle child" because out of 3 kids that had happened to, i was the only one to survive it. i thank god everyday for watching over me. and through all the years, i rebelled a lot and my a1c wouldnt drop from 15%… im proud to say im at 5.8% and gunna keep it that way! :) right now im sick, and my bg is 600+ but slowly coming down… lots of water, monitoring it, and insulin always help me and keep me out of the er :) hope this helps!

Luckybrandon 2014-10-13 08:55:18 -0500 Report

I am lucky to still be among the living. I had no idea that I was in as bad shape as I was in regards to my blood sugar, having no history of diabetes. Staff called 911 when I didn't appear to be feeling well, low and behold, my blood sugar was 1098, the highest that the EMS and one of our local hospitals had ever seen. After several days in ICU and having mashed potatoes for brains as my son put it, I learned that I'd had the tell tale signs, but not knowing myself what those were, and if not for people who recognized something being wrong, things could have had very different results. I've noted several who were found to be even higher than me, and all I can say is be thankful you're still here. I was told that had my staff left for the night without making the call, I would most likely not have survived the night…wow what a scare! Diet, exercise and lots of meds for now, but that's ok, I'll live to see another day.

Vhm 2014-08-15 20:52:20 -0500 Report

When I was diagnosed I was told me A1c was literally "off the chart." The chart goes to 14, so there you go. Post diagnosis, my highest BG readings were in the 500s. It wasn't that I was not trying at that point; I was. But numbers were still crazy high from time to time. I was learning. So, I cannot imagine what my BG was at times pre-diagnosis when I really wasn't trying because I didn't know I needed to try! (Of course this is apparently what happen when you have no insulin!)

nolongerinacoma 2014-08-11 22:52:26 -0500 Report

As far as I can tell, I win. My blood sugar in 2008 rose to 1406. If I had been home alone I would not have made it through the night. I had the most unquenchable thirst imaginable. Never knew I had diabetes either. I was taken to the ER where my status was "unresponsive" because I had fallen into a diabetic coma. That was when my blood sugar was taken. I've lost 50 lbs. since then and I (try to) exercise regularly, and my diet is now something I pay attention to - instead of ignoring it.

TooSweet60 2014-09-15 17:24:18 -0500 Report

Wow, Im sorry you went through that, my higest has been between 600-700 hop measure. I never went under 200-250 fasting for 2 years, until the new doctor put me on lantus. And they wonder why my neuropathy is so bad…now I am F-125-140 other times 145-250 not perfect but way way better, stay well

Brenin 2014-09-08 18:13:24 -0500 Report

Don't take this the wrong way, but HOLY CRAP! That was high! I didn't know numbers could or even would go up that much.

rontexas2 2014-10-25 11:10:44 -0500 Report

It took me more than fifteen years to really learn how to live on low carb diet. Before that, 145-240 was normal. For the past three years my A1C has remained in mid fives with daily reading between 85- 125.

rontexas2 2014-10-25 11:10:41 -0500 Report

It took me more than fifteen years to really learn how to live on low carb diet. Before that, 145-240 was normal. For the past three years my A1C has remained in mid fives with daily reading between 85- 125.

rontexas2 2014-10-25 11:10:30 -0500 Report

It took me more than fifteen years to really learn how to live on low carb diet. Before that, 145-240 was normal. For the past three years my A1C has remained in mid fives with daily reading between 85- 125.

rontexas2 2014-10-25 11:10:20 -0500 Report

It took me more than fifteen years to really learn how to live on low carb diet. Before that, 145-240 was normal. For the past three years my A1C has remained in mid fives with daily reading between 85- 125.

rontexas2 2014-10-25 11:10:17 -0500 Report

It took me more than fifteen years to really learn how to live on low carb diet. Before that, 145-240 was normal. For the past three years my A1C has remained in mid fives with daily reading between 85- 125.

IamBubbely 2014-07-29 13:39:25 -0500 Report

The highest mine has been was 229 and I was very scared. At that point it scared me into doing all the right stuff. I now see a Endochronolgist and walk a lot..I have also change my eating habits drasticallly.

kma715 2014-07-02 10:53:32 -0500 Report

my brothers reading today 550. His new doc took him off of ALL meds to start over. Robb is feeling weak and little energy. Waiting to hear from his doc. I think he should inject insulin again?

funnygirl98 2014-06-26 15:50:41 -0500 Report

The highest my bs has gotten for me is 187. I went to see my primary dr heordered blood work and found out my a1c was at 7 so he started me on metmorphin 500 mg 3 times a day and I lost a bunch of weight went off the meds and now i was diagnosed as a hyopglycemic so my numbers go high and low and back to normal but thats the only medical attention I had.

Chevy Vega
Chevy Vega 2014-06-19 09:34:33 -0500 Report

I neglected my diabetes. I went out of town. My meter broke shortly before, but I left anyway. I knew my blood sugar was high, but I didn't feel too badly. I walked to the first aid station at the park I was at. They told me I was going to the hospital. I was told several times at the hospital that I set a record. The level was about 980.

IamBubbely 2014-06-11 22:32:19 -0500 Report

213 and that was the day I decided..THAT's IT..I will not let this disease control me..I will control it. I was so tired of being 'sick and tired'. I started exercising eating right..most importantly..I Changed My Mindset. The highest it's been since that day was 101…

Bangkokbuddy 2014-06-09 22:14:46 -0500 Report

my highest recorded BG was 552. I was diagnosed diabetic on june 2, 2014. 2 days prior to going to the doctor, I urinated every hour for almost 2 days. I didn't know what was going on. just got scared. a friend told me I might be diabetic and the rest is history. today, I'm on insulin. my last BG reading was 119.

mahjah 2014-06-09 21:21:39 -0500 Report

Mine was 400 a few weeks ago. It scared me enough that I am back to no starch diet. It is slooowly coming down. I've been re reading my "Blood Sugar 101" book—it is my bible.

Softballmom1609 2014-05-14 11:51:54 -0500 Report

I believe my highest level ever was 250 and that was when I was first diagnosed. I usually run 140 and under after meals since losing over 20 pounds.

HillCo 2014-05-09 01:52:55 -0500 Report

I had a reading of 1377 when taken to the ER. Never had anything remotely connected to having diabetes. They tested over 3 times to make sure, was in ICU for 3 days.

Chevy Vega
Chevy Vega 2014-06-19 09:36:32 -0500 Report

Hi, Hillco! I had a similar deal. Straight from vacation to ICU. I was told I set the all time record at the hospital I was in.

Pastor Naomi
Pastor Naomi 2014-04-19 14:10:15 -0500 Report

I have been very concerned about my A1c & the way I control my blood sugars because I watched how the various members of my family did or didn't care for their diabetes well. I do not want the complications family members were having back when we did not have everything we have to care for ourselves now. Granddad had nothing but a pill called diabenese. No meters. no test strips, just a diagnosis, a pill, and a do the best you can not to eat sweets, Will. My uncle had a massive stroke, and multitudinal other problems. My mom had access to meters, test strips (first urine ones & later blood ones), several pills, insulin in vials and surringes, (sp.), but died of a diabetic heart condition, and hid candy bars and pies in her freezer and drawers. Seeing prior generations of family members either being unable or unwilling to care for their diabetes appropriately has made me determined to be on top of my own situation. I try to keep my sugars under 150 as much as possible. When I had my last spine surgery, the nurses would not allow me to have my insulin pens in my room. I had been out of the recovery room for a number of hours and it was supper time. I tested at 156 before the meal, and asked for my novolog to be brought so I could take a shot before I ate. They did not bring it, so I didn't eat. Then they yelled at me for not eating, so I said well, you did not bring my insulin so I could take it. Their response was that I did not know what I was doing and I could not have insulin right after surgery because I did not know how my body would respond. They insisted that I eat, no insulin. I finally did after they reheated my meal. At 10pm, I took my blood sugar prior to settling for the night and it was 298. I was so angry! If they had let me give my insulin shot, I would have been something like 146, maybe. All of a sudden a nurse rushed in with my novolog and demanded that I give myself a shot. I said I can't. This is a fast acting insulin and can only be taken right before meals. If you are going to get me a full meal at 10pm, I will take the insulin. Otherwise, no insulin! Oh, they screamed and yelled, and what was I going to do to lower my sugar. I said absolutely nothing because you tied my hands when I was not allowed to have it before the meal. I said it will just have to come down on my own by drinking extra water and praying that I will be all right, but I am warning you that I am reporting this in the morning, and my doctor is going to hear about this. The next day I got my insulin before each meal and they were falling over backwards to make sure I had what I needed. It had gone back down to 132 be 7am. If you have been watching what happens to your blood sugars, you will know your own body, and usually can handle those kinds of situations. I hate it when the nurses are know-it-alls, and won't let you do what you need to do. After 26 operations, I knew how my body would respond after surgery. But I had to put up with the bunch of them till I went home. If you watch what your eat, get a bit of exercise, and take your tests, you can control your blood sugars ln your own using whatever meds they have prescribed for you. Oh, dear, I wrote another book.

SudsOnTop 2014-07-10 09:27:23 -0500 Report

You should have taken the Novolog. It is a fast acting insulin intended to be taken with meals, however it will also bring your blood sugar back in range after meals. If I were at 298 I would have taken about 12 units of Humalog and either stayed awake, or set an alarm for 1.5 to 2 hours later. For a reading that high during the day I would normally take about 18 units to bring me back in range quicker. Anyhow the point is you can take Novolog anytime you body needs insulin to utilize the sugar in your blood, you just don't want to go to sleep and then have hypoglycemia. I will stay awake for 4-4.5 hours after my last fast acting shot to make sure I am safe as that is the life of the insulin.

IamBubbely 2014-06-11 22:37:32 -0500 Report

That's the key to it all. You MUST know your own body better than the doctor and any other professional. They read books..but we are all UNIQUE!

peewee0618 2014-04-02 19:36:27 -0500 Report

My suguar has gone up as high as the 400's. This is when my mom was in home hospice and I was taking care of her. The stress of taking care of her really got to me and when I finally went to the doctor, I was told that I was just days away from a stroke. That is when my doctor put me on Victoza because the medicine in the form of a needle works quicker than the pill and have been on Victoza since 2012 when my mom passed. Even now if it get high, I just drink plenty of water and that helps.

MicNeil 2014-04-01 13:09:51 -0500 Report

My highest reading was 585 when I overdosed on carbs one morning. Haven't had Cream O Wheat and biscuits since…even tho I love it. Number came down fairly quickly with hydration, exercise and extra Glucocil. The 2nd highest was when ER doc gave me Prenisone on a stomach that had no food in it for 26 hrs. All vitals went to hell in a hurry. It did not even start to come down that time until they gave me a shot of insulin. Lessons learned: Some Docs are dumb as posts, Don't let anyone give you Prednisone. There's always another/better solution IMO.

jayabee52 2014-04-01 13:37:30 -0500 Report

Mic, not necessarily always is a better solution is available.,.

My 2nd (now late) wife had Lupis and RA and when she would flare and her joints got hot and painful she could not take anything else because she was allergic to all of the "biologics" which were then available. (she had allergies no end) Either cortisone shots or prednisone pills would be needed to ease her pain. She also had Diabetes and the steroids spiked her BG levels into the 300s. We had to treat those numbers with two different fast acting insulins administered on sliding scales set up by her Endo. We had to work on it and after about a week, we'd get her down more toward normal.

Sometimes there is no alternative solution.

God's best to you

MicNeil 2014-04-02 02:06:05 -0500 Report

So sorry to hear of your late wife's pain and the stress on both of you. I'm so glad she had you and didn't have to face it alone. Am sure you would and did everything you possibly could to help her. Sounds like such a scarey tightrope you were walking.

I'd say alot of your wisdom, that is helping others on this site now, comes from those experiences. Thank you for that…and for walking the road with your wife for so long.

God's Best To You,

MicNeil 2014-04-02 03:01:08 -0500 Report

I can only speak from my own experience. The Prednisone should never have been given in my case and did only harm.

Mommmelissamoo 2014-03-27 21:59:39 -0500 Report

I was feeling draggy the month of January. Had hosted, cooked, cleaned and decorated for two parties of over 100 in December. I thought I was tired and had flu. Turns out my blood sugar was almost 900. A1C was 14.9 I was dizzy, but still driving and functioning. Obviously I was admitted to the hospital for a new diagnosis of Type 2 diabetes.

TopazDee 2014-03-08 12:51:50 -0600 Report

The highest I have known mine to be was approx. 510 (28 uk reading) when admitted to hospital with chest infection I was on steroids as I have COPD. at that time I had not been D diagnosed, my readings had the paramedics worried, I was more worried about having difficulty breathing.

MicNeil 2014-04-01 13:19:19 -0500 Report

I too was first diagnosed with DB in the ER for a lung infection. Also have COPD (Severe Sleep Apnea & Chronic Bronchitis) so wasn't my first rodeo for that. Did not believe Docs when they said I had Diabetes as they sent all my vitals into the stratosphere with a huge Prednisone shot on a totally empty stomach…supposedly to stop a heart attack they said I was having…which I wasn't and didn't…not because they didn't do their very best to give me one.

peewee0618 2014-03-07 19:16:53 -0600 Report

My sugar has been as high as 425. At that time, I was taking care of my mom who had dementia and congestive heart failure. She was confined to the bed and I had to feed her and do everything for her until a home health nurse came in and nurse finally started coming. It was the stress that caused my sugar to go up like that even with my taking my meds. That is when my doctor put me on victoza and it now all is right with the world.

TopazDee 2014-04-02 15:36:30 -0500 Report

I soooooooooo wish I could gather up all my friends on this site and teach them to meditate, It is the best way ever to de-stress you can leave things way behind rest catch up with yourself and come back feeling so good.
After practice you can even have minor medical procedures done just by going into deep meditation mode.
I was once told to make a guided meditation CD as I have the right sort of voice this has now really made me think seriously about it, will write down the words then look into how to get it on a CD.
Stay Safe xxxx

Laurene 2014-03-06 17:42:01 -0600 Report

If you need to find out what is causing your numbers to be soooo high, I would suggest that you start writing down everything you eat and test 1-2 hours after you eat and that will help you to see where you need to cut back or eliminate on certain foods or cut the amount of high carb foods you eat. Nobody will peak at your notes but you will have to be honest with yourself. It is a great feeling to know that you can control your numbers. Also test and then walk for a minimum of 15 minutes - wait another 15 minutes test again and see your numbers go down. I ride a stationary bike because I cant walk too far without a walker. We don't have the answers for you but we can tell you what works for us. Take our help (info shared) and find what works for you! IMPORTANT have fun doing it. You will do well.

TopazDee 2014-04-02 15:41:24 -0500 Report

I did this Laurene it is a great suggestion, my fingers did get sore until my friends here told me 3 area's on my finger to get that little drop of blood, all is well now and only do it twice a day unless I eat something new.
Stay Safe xxx

msann 2014-03-06 14:05:03 -0600 Report


Gaywag 2014-03-06 08:55:02 -0600 Report

My son in law has type 1 diabetes. He is on an insulin pump. He has been admitted to the hosp 2 times in the last 5 weeks when he became very sick, throwing up, etc. and his sugar was too high to be read by the meter. Yesterday he was admitted to the hospital and his sugar was over 1000. Within 2 hours it was up to 1440.

musume29 2014-02-27 23:21:53 -0600 Report

My sugar level today was 502…i just got tired all of sudden. I ate lunch and did not have time to take my insulin. When i got to work i felt off …tested and saw my level and freaked out. I took my insulin but still tired. My levels had shot up high but not to 500 and it went down to 54 one time. Its hard trying to stay on track with this diabetes.

SudsOnTop 2014-07-10 09:32:44 -0500 Report

How can you not have time to take insulin? It takes like 45 seconds if your taking your time about it.

dIDYMUS 2014-02-27 01:22:41 -0600 Report

I have been told that it is dangerous if over 200. I think my highest was 175 one time. But I would sure check with somebody who knows more than me. 600 seems pretty high, but then again check with someone who knows.

jayabee52 2014-02-28 03:05:07 -0600 Report

yes Didy, anything over 140 mg/dl is dangerous.

My late wife had several 600s when I was with her, we usually went to the ER to get her an insulin drip to bring her down, She had to take predinsone pills or cortisone shots due to her lupis and RA. Those were the only meds that would work for her so she had to take them whem she had a "flare". Then she'd have highs. Not always 600s but sometimes approaching 300s

I am not sure why she passed away (the guess was her heart gave out finally as she had CHF) but she had just that prior day had been a cortisone shot by her Rhumy.

God's best to you

TooSweet60 2014-09-15 17:41:12 -0500 Report

So sorry for your loss. Lupus is hard enough, add diabetes and my heart goes out to you having to watch her sick, but god bless for staying beside her

MHarris4now 2014-02-24 18:24:41 -0600 Report

465 and didn't feel any different!

TooSweet60 2014-09-15 17:51:21 -0500 Report

You know Really I didnt feel super different, I was dealing with Failed back surgery and pain, steroids, i was tired, thirsty, running to bathroom, but Had no idea I was diabetic, but They say the steroids kick started what was already there, turns out that all the visits to doc and ER my sugarsthey said were fine, was running between 145-180 even 200. Normal uh-huh! That was several years. I should have followed though better since My dad was type 1 from age 12, passed at 42 of 8th heart attack.his brother and dad both type 1. His dad my grandpa lost leg. All my uncles kids Type 1. My mom, her mom, her 11 brothers and sisters and many of their kids and grandkids Type 1 and 2, my oldest on Type 2 since 21, youngest type2 since 18 Both my daughters Pre Type 2. My brother Type 2 my sis so far so good. Why would Ai not be diabetic

nzingha 2014-02-23 22:24:35 -0600 Report


maryhelen1129 2014-02-19 04:25:14 -0600 Report

Have kept my blood sugar under control through diet for many years. My problem was when it went high (200) within 30 min. it would be below 40, several times in low 20s. I always woke up with it high and it would get higher until I ate even if I waited the entire day to eat. Dr. checked in Dec. 2013 A1C and said it was good. Checked A1C in Jan.2014 and it was 8.5. He put me on 500mg.metformin and Im watching my diet even closer. My sugars just keep going up and have only been under 200 about 4 times in the last 4 weeks. Im really confused but am wondering if I need to go on insulin, not sure how the metformin works. I feel dizzy a lot and off balance.

TooSweet60 2014-09-15 17:54:44 -0500 Report

So do I dizzy is a side effect or it can be your sugars, my doc added Glyburide first, from smallest to higest doses of Metformin and Glyburide along with good diet. Finally they added Lantus Pen Insulin at 25 units im under 175 95% of the time I get a 225-290 here and there

GranmaJoyce 2014-02-17 20:34:13 -0600 Report

My highest blood glucose level was 1200. Didn't even know! Whats so weird with my blood glucose levels the higher the more I am able to function the lower the sicker I get????

Leslie4283 2014-02-27 13:51:01 -0600 Report

My boyfriend was just released from ICU on Tuesday (the 25th of Feb). He came in through the emergency room with a blood sugar level of 1220. He was previously undiagnosed. They pricked his finger and it just showed it was above 500, which they were still terribly concerned about. They had to send the blood to the lab to get a more accurate reading, and it came back as 1220. Many of the doctors and all of the nurses (including the diabetic educator) said they had never seen a level that high. It's a miracle that he's alive right now.

jayabee52 2014-02-19 15:03:17 -0600 Report

That is interesting. How'd you get that reading? Most glucometers don't read over 600.mg/dl If it encounters a reading above that it will simply greet you with a "Hi"

Grandmama16 2014-02-17 15:58:04 -0600 Report

262 from what I can remember and I felt weird but never near as high as some of you have had. I take 1500 mgs of Metformin and count carbs, tho don't write them down. Meds are making me too sleepy. I think it's the Nuerontin for numbness and pain in hands…and itching in feet/ankles too. Mostly BG is 120's to 190's.

2katladi 2014-02-14 12:31:19 -0600 Report

I've gotten up to 398 before. Once, many yrs ago, I took my Mom to Urgent Care in the morning, & they tested her glucose level (at my insistence). It was in the low 600 range. They didn't send her to the ER, but kept her in UC until about 8pm that night - until her reading came down to the low 400 range. They had her on insulin during those hrs. Other than that time, she never used insulin. She controlled her diabetes thru her diet.

Stuart1966 2014-02-13 22:45:00 -0600 Report

45 years… NEVER needed medical attention for a high.

Needed fluid, been HI many times, but, outside medical attention, necessary never. >: >

RobertL.Pendarvis 2014-01-21 17:23:10 -0600 Report

Meter just said Hi

diabetesfree 2014-01-22 21:32:37 -0600 Report

That typically means that your blood sugar meter can no longer give an accurate reading because it has gone above 599. Anything 600+ and all you get is the word "HI" displayed on most consumer meters. Ones used at the hospital can still give an accurate reading though.