Do I Need A Spirometer And A Mexican Phone Card?

[Proud2BMe 1,016]

I've read here that people bought a spirometer and took it with them. Some even took a Mexican phone card. Are these things really necessary? I don't want to take anything I don't really need.

[chunkyloverlovesyou 197]

If you go to the OCC they tell you that you have to have one..turns out they never check or ask

[Kindle 8,667]

I bought my spirometer ahead of time (Amazon $11) and used it daily as per OCC cardiologist instructions. I actually increased my lung capacity by 1/2 liter before surgery by doing this. I continued using it for a couple weeks postop.

As for the calling card, I turned my phone to airplane mode and used the OCC And Marriott free wifi for email, FaceTime and iMessage. Other people have upgraded their phone plans to international just for the month they go down. AT&T offered this option for $18.

Edited March 6, 2015 by Kindle

[freddie8_8 37]

Has anyone tried using viber or google hangouts to make VoIP calls from mexico using hotel or hospital wifi. I read somewhere that making calls over wifi is blocked in mexico.