Here's a thought. when was the scale at the drug store calibrated ? How many people do you think use it to weigh themselves ? If the scale is used dozens of times a day by people of varying weights, it means the numbers could be incorrect if the scale is not calibrated each day (or even once a week by the staff). Medical offices should also be regularly checking the scale for accuracy.
Don't assume either scale is correct if neither was properly calibrated.
Another point, when did your weigh yourself at either location ? You may have been undressed at the doctor's office and wearing lots of winter clothing at the drugstore. I doubt you took off your clothing at the drug store. The physical weight of your clothes would cause a difference in the reading.
When did you eat ? Did you weigh yourself on an empty stomach ? If you ate breakfast, lunch or snacks; if you drank water before your weighed yourself, the physical weight of the food/water you ate will cause the scale to increase.
Did you have a bowel movement ? Not to get TMI, but if you don't do a poop before weighing yourself, the physical weight of your body's waste product can cause a difference in the number. Try it some time. Weigh yourself before and after a substantial poop. did you lose weight ? Yes ! Did you lose fat ? nope.
The final point is that there are a lot of factors that can cause your weight to be different from one scale to another. You need to be consistent when weighing. Always weigh in at the same time under the same conditions. example, weigh yourself every morning at 6am right after you go to the bathroom.
Personally, I always thought doctor's scales added five pounds. LOL
I thought of a suggestion. I have my own electronic scale at home. It sits on a tile floor in my upstairs bathroom. If I have a doctor's appointment, I weigh myself first thing in the morning before eating (if I am not fasting for bloodwork) and after using the loo and I ask the nurse if they will use the weight I took that morning.
Most are happy to oblige. I only had one nurse who was a jerk about it. :-) Surprise surprise, the weight she took matched what I told her. *eye roll*
I started this a couple of years ago because the potential for huge swings mess with my head. Yes, a doctor's scale is probably better than a drug store scale but I like consistency. :-)
Edited by: MLAN613 at: 2/10/2020 (06:13)
Meghan in Minneapolis, Minnesota, USA
April Minutes: 1,127
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31,813 2/10/20 3:36 A
What type of scales does the drug store use? At my pharmacy, the scales were analogue - but the big commercial ones. I noticed the weight starting to vary considerably with my Dr's big hospital-type digital ones. I weighed more on the Dr's than the Pharmacy's one. Then I noticed the analogue ones were pointing way below the *0* which accounted for it. They needed to be reset. The Pharmacy tries to keep kids off it because they tend to jump on it a lot and that can affect their accuracy. The Dr's one is right outside the consulting room, which is well away from the waiting room where kids tend to get a bit boisterous from boredom.
The Higi at my drugstore is a sit down and I would guess that you were managing to put some of your weight off of the plate based on how you were sitting. I have never seen a stand up Higi. You could have also been dehydrated at the Higi and very well hydrated at the Doctor's and you probably went to the bathroom after the doctor's rather than before. Things like that do add up.
In any case most scales are slightly off from one another. So the best thing to do is to pick your scale and use that scale on a regular basis. If you lose ten pounds it will show on whatever scale you are using, but if you use three different scales it is going to be a headache trying to figure out if you gained or lost because scale x runs five pounds over scale y, which is three pounds over scale z.
Huge differences in scale readings are really common, especially since very few places (including doctors' offices and pharmacies) get their scales properly calibrated on a regular basis. Both mechanical and electronic sensors need to be on firm, flat ground or flooring at all times, and will get "knocked off" of zero by movement, imbalance, or environmental conditions. Even your home scales need to be reset to zero again every time they are moved - and should be checked and reset on a regular basis since the imbalance caused by stepping on them first on one side then the other can be enough to knock the calibration.
There is also the reality that your actual weight can change 8-10 lbs or more during the course of the day (most folks eat / drink 10-14 lbs of food and water through the day), and there are always differences in what clothing you are wearing. My usual winter clothes weigh between 3-6 lbs (without shoes or jacket), and increases in humidity can add even more weight.
When I was wearing mostly size 18-20s at 5'9" tall, my weight at home in the morning with no clothing was generally well over 260 lbs. Depending on your height and muscle / fat ratio, the doctors' office reading of 267 could be pretty close. I'd suggest that you purchase your own scale, make sure that it is properly zeroed and calibrated, and start tracking at the same time of day / same conditions for a while. All bodies have a range that they stay in when we are maintaining (variances due to hormones, exercise, inflammation, health conditions, humidity, etc.), so you should see an average over a week or two. That average over time is what is important - not a single reading at home, at the doctors', or at the pharmacy.
Sir Terry Pratchett: "Science is not about building a body of known 'facts'. It is a method for asking awkward questions and subjecting them to a reality-check, thus avoiding the human tendency to believe whatever makes us feel good."
I wear a Size 18W Lee jeans. I was shocked when I weighed 267 lbs at the doctor’s office. I weighed myself at the drugstore (Higi). I weighed 237 lbs (checked three times. How could I be that far off between scales??