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How much water for ultrasound...

post #1 of 21
Thread Starter 
We are having an ultrasound tomorrow(I'm about 17 weeks + 2 days). I asked the nurse if I needed to drink a ton of water and she said just have a full bladder...so what the heck does that mean? How much water would that mean, and how late is the latest can I drink it before the ultrasound? Meaning my appointment is at 5pm can I wait until about 4:30 to drink it? I had an ultrasound back in 2000 with my first at around 20 weeks and they had me drink about 60 gallons and I was almost peeing my pants. I am trying to make it as least painful for me as possible.

Thanks!! Sara
post #2 of 21
It means drink a lot. And when you have to pee, you can't go. You have to hold it. As long as you feel like you have to pee, you'll be fine. I hate hate hated that in my first pg! Bladder irritation is some of the worst pain! But it's worth it- enjoy your view of the baby!
post #3 of 21
hmmmm... I have never had my OB tell me to drink water before an ultrasound. I have heard other people say this before but I always thought that it was only non pregnant woman who needed to drink water so they could decifer between the bladder and uterus.

If I were you I would wait until you are on your way or even at the office before drinking the water. I would imagine that 24 ounces would fill your bladder pretty quickly.
Good Luck!!
Amy
post #4 of 21
I wouldn't worry about it. Take a bottle of water with you to the appointment and sip it while you're waiting to go back, but I wouldn't drink anything extra. A full bladder is usually only needed for ultrasounds before 16 weeks anyway. If you're going to a place that does a lot of ultrasounds and has very experienced techs they will be able to see fine. In fact, I have often been told to empty my bladder by various techs because the bladder was so full it was making it harder for them to see the baby.

If for some reason they do need your bladder to be more full, they'll have you drink something in the office.
post #5 of 21
Quote:
Originally Posted by egoldber
In fact, I have often been told to empty my bladder by various techs because the bladder was so full it was making it harder for them to see the baby.
:

When I went for my ultrasound at 12w they had me empty my bladder before even trying to look, I was suprised as I had been trying to drink water while waiting to have a full bladder....

Right now, I only need to drink a small glass of water before my bladder is full....so I would say, just bring a water bottle with you and drink while you wait...no need to go overboard
post #6 of 21
I wonder if maybe part of it is a difference in age of equipment? Like perhaps the newer equipment is better and doesn't need you to drink water? My OB didn't say anything about drinking water before my u/s appt at 20 weeks. I've heard of other women being told to have a full bladder for the u/s, but not everyone seems to be told that. I know my OB has a pretty new machine (it's 4D capable, etc.), so I guess his machine doesn't require it.

But since they told you to have a full bladder, I would just drink normally throughout the day and not pee before you go in to the appt. I mean, usually your bladder is full everytime you get there anyway, right? I don't think it needs to be *bursting*.

I'll go send an e-mail to a friend of mine who is an u/s tech and see what she says about the full bladder vs. non-full bladder. I'm curious now, but I suspect it's just the equipment thing.
post #7 of 21
The hospital where I have my ultrasounds requires a full bladder for any ultrasound done before 13 weeks, but not after that.
post #8 of 21
Thread Starter 
Thanks so much everyone!!

Talk to you later,
Sara
post #9 of 21
Thread Starter 
Oh, and i wanted to add that I'm guessing those of you that mentioned the differences in equipment are probably right on!! This is a smaller town, so I'm wondering if they'll have less updated equipment...this is my first time here, so I'm not sure.

Thanks again, Sara
post #10 of 21
Age and quality of the u/s equipment does have a great deal to do with it. Just remember that a full bladder doesn't mean you have to be in pain.
post #11 of 21
OP may have already left for her appt, but... My u/s tech friend replied with this:

Quote:
It depends on equipment, but moslty just standard protocol of the reading Dr. If they want to measure her cervical length, and don't want to fo a transvaginal (which is usualy unnecessary by 17 weeks) then her bladder needs to be pretty full. I would say 24 -30 oz should be enough though.
post #12 of 21
My. Dr. hands out a "reminder" to drink 20-24 oz. (I think) about 1/2 hour before the exam.

And I learned with my son that a full bladder need not be painful. I was in tears waiting, and when a nurse told me I could "go a little" to relieve the pain, I almost hugged her. Never though I could go and stop, but I did.
post #13 of 21
Thread Starter 
Quote:
Originally Posted by boscopup
OP may have already left for her appt, but... My u/s tech friend replied with this:
Thanks, I am just about to leave, so I got this just in time!! Sara
post #14 of 21
I went through this a couple of weeks ago, and it was so painful. My bladder was enormous on the U/S, and the tech took forever. A good thing, but I was hurting, and almost didn't enjoy the experience. I had a transvaginal U/S a few weeks before that, and I didn't have to drink anything. I was so happy when the Tech told me I could go pee
post #15 of 21
The instructions on my u/s sheet say:

2 hours before your appointment time, go to the washroom and empty your bladder. Imeediately drink 4 glasses of water.
do not empty your bladder until after your exam.

This has always worked for me, and only once was I busting at the seams and the tech let me go empty a cup (literly took a cup, peed in it and tossed in the toliet- I think that was worse than holding it all)
post #16 of 21
I had one at 17w2d and was never told to have a full bladder - in fact, the tech asked me if I had to use the restroom before she began.
post #17 of 21
Quote:
Just remember that a full bladder doesn't mean you have to be in pain.
Totally! My dating ultrasound was delayed by two hours, so I ended up going to the bathroom, then sipping probably 8 ounces or so of water over the next 2 hours while I waited. I was worried that it wouldn't be enough because I didn't feel like my bladder was full at all, but wasn't willing to be in pain again. The U/S tech said my bladder was definitely full and she was able to get some good shots.
post #18 of 21
Quote:
Originally Posted by Saramomofmany
We are having an ultrasound tomorrow(I'm about 17 weeks + 2 days). I asked the nurse if I needed to drink a ton of water and she said just have a full bladder...so what the heck does that mean? How much water would that mean, and how late is the latest can I drink it before the ultrasound? Meaning my appointment is at 5pm can I wait until about 4:30 to drink it? I had an ultrasound back in 2000 with my first at around 20 weeks and they had me drink about 60 gallons and I was almost peeing my pants. I am trying to make it as least painful for me as possible.

Thanks!! Sara
I had an abdominal u/s at 13 weeks, and the fullness of my bladder wasn't an issue.

I don't think it's really a big deal--just don't pee beforehand.
post #19 of 21
Wow, I've never had to drink extra or just not pee first (thank goodness!). I thought the full bladder thing was only if you were in very early pg. But I guess the age of equipment theory makes sense.

OP, hope you had a good appt!!
post #20 of 21
So I had an U/S 2 or 3 weeks ago. Someone called me the day before to confirm my appointment and also to leave instructions. My appt was for 8:30am. The instructions were: drink 24oz of water one hour before the appointment and to retain it.

Do you have to drink that much before? Those were just my instructions. But the tech said, "Good job on the bladder." I chuckeled and said, "uh, yeah." So I guess it worked well.

Good luck
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