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Digital pregnancy tests have an internal paper test

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81–90 of 161 posts

Re: Digital pregnancy tests have an internal paper test

#81
post #25

This is basically the definition of plastic waste.

And are people supposed to tear it down and dispose of the battery separately? (the battery is hazardous and has markings indicating it is not to be thrown away).

I'm confident that kinda thing happens at the waste processing plant. But that's making assumptions about waste disposal.

Re: Digital pregnancy tests have an internal paper test

#82
post #2

Ouch, that's pathetic. I've noticed companies that build medical devices have followed the lead of big tech companies like Apple. First it was devices with non-replaceable batteries, and now: subscription services. It's crummy.

Yup, or adding bluetooth and connect with an app just because they can then charge a premium.

I mean it's a toothbrush, come on.

Re: Digital pregnancy tests have an internal paper test

#83
post #77
post #71

Going over the conversation here I'm a bit surprised by how many people seem to prefer an unnecessarily complicated and obfuscating solution to the straight-forward one. The Twitter thread clearly points out that the electronics serve strictly as an intermediary layer between the paper test and the user. They just binarize the paper reading. This in turn gives a false psychological sense of security ("it's the comput…

> Why should I trust the people who calibrated the electronic device more than my own eyes? Do you as a layperson know how sensitive the test strip is, or how blue it needs to turn to have a reasonable guarantee against false positives? It seems like the engineers of the device would have a much better perspective on those things.

I know that whoever made the test, if it's a reasonably competent enterprise, made it with human capacities in mind. I don't think the threshold between positive and negative is easier to tell for an engineer than for anybody else with reasonable eyesight.

I might change my mind if it would surface that the paper tests used in the electronic devices were somehow different from those available to the general public and they were tailor made for the sensors and diodes in order to make the results more reliable. I doubt this is the case, however.

Re: Digital pregnancy tests have an internal paper test

#84
post #83
post #77

Earlier quoted context omitted.

> Why should I trust the people who calibrated the electronic device more than my own eyes? Do you as a layperson know how sensitive the test strip is, or how blue it needs to turn to have a reasonable guarantee against false positives? It seems like the engineers of the device would have a much better perspective on those things.

I know that whoever made the test, if it's a reasonably competent enterprise, made it with human capacities in mind. I don't think the threshold between positive and negative is easier to tell for an engineer than for anybody else with reasonable eyesight. I might change my mind if it would surface that the paper tests used in the electronic devices were somehow different from those available to the general public an…

> I know that whoever made the test, if it's a reasonably competent enterprise, made it with human capacities in mind.

Are you sure they weren't just constrained by technological limitations when they designed the paper test? Maybe the reason the digital test exists is that a competent enterprise wanted to adapt the paper technology to better fit human capacities?

Re: Digital pregnancy tests have an internal paper test

#86
post #78

As pointed out on the twitter thread. If a digital test is wanted, there's no reason it couldn't accept exactly the kind of disposable strip it contains. That way the part that is going to become ewaste could at least be re-usable.

Single use is (/can be) sterile when used once.

How do you make sure it is clean on second use?

Do paper test strips include a wick?

Re: Digital pregnancy tests have an internal paper test

#87
post #84
post #83

Earlier quoted context omitted.

I know that whoever made the test, if it's a reasonably competent enterprise, made it with human capacities in mind. I don't think the threshold between positive and negative is easier to tell for an engineer than for anybody else with reasonable eyesight. I might change my mind if it would surface that the paper tests used in the electronic devices were somehow different from those available to the general public an…

> I know that whoever made the test, if it's a reasonably competent enterprise, made it with human capacities in mind. Are you sure they weren't just constrained by technological limitations when they designed the paper test? Maybe the reason the digital test exists is that a competent enterprise wanted to adapt the paper technology to better fit human capacities?

Maybe, although I doubt it. It would mean that they put in extra research to, for example, plot an ROC curve and see what the optimal threshold for the test would be.

Even if that was the case, you can still frame the question in terms of cost/benefits. The electronic test is, let's say, 10 times more expensive than a basic one. Is it more reliable than taking 10 basic tests (maybe at different times) and averaging the results? Probably not.

Re: Digital pregnancy tests have an internal paper test

#88
post #25

Earlier quoted context omitted.

And are people supposed to tear it down and dispose of the battery separately? (the battery is hazardous and has markings indicating it is not to be thrown away).

I'm confident that kinda thing happens at the waste processing plant. But that's making assumptions about waste disposal.

I’m confident it doesn’t.

Re: Digital pregnancy tests have an internal paper test

#90
post #71

Going over the conversation here I'm a bit surprised by how many people seem to prefer an unnecessarily complicated and obfuscating solution to the straight-forward one. The Twitter thread clearly points out that the electronics serve strictly as an intermediary layer between the paper test and the user. They just binarize the paper reading. This in turn gives a false psychological sense of security ("it's the comput…

I actually saw this last night and initially had the same reaction but had some time to think on it. Remember, for a lot of people taking a pregnancy test is incredibly stressful. Reducing the complexity of reading by outputting a less ambiguous result has a lot of value to some people.
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