题目内容：

Reasons You Might Not Be Able to Donate Blood

Donating blood is a generous — not to mention necessary — act, but there are several restrictions on giving that protect you and future recipients of your gift

The medications you're taking

Most medications won’t disqualify you from being able to donate blood. 1.. If you're taking an antibiotic for an infection, you may be asked to wait until you're healthy again; if you're taking aspirin and donating platelets, you must wait two full days after taking aspirin or any medication containing aspirin before donating,

You’ve tested positive for hepatitis or HIV

2., you cannot donate if you’ve tested positive for either condition. Because some types of hepatitis may not be treatable and can lead to fatal health problems, such as liver failure and liver cancer, it is too risky to donate blood if you have these diseases.

3.

If you weigh less than 110 pounds, you're not eligible to donate blood. Underweight individuals tend to have low blood volumes and therefore may not tolerate the removal of the required volume of blood.

Your iron levels are too low or too high

Having low iron — less than 12.5g/dL for women and 13.0g/dL for men — will disqualify you from donating. For this reason, frequent donors, especially women, are encouraged to take iron supplements and eat iron-rich foods to keep their levels in the normal range. 4..

You recently got a piercing or electrolysis

5., if you've recently gotten an ear or body piercing or electrolysis with a reusable gun or reusable instrument. Before you get a piercing or electrolysis, he recommends doing your research on whether the place employs single-use equipment.

A.Having levels that are too high will also disqualify you from blood donation

B.High blood iron levels increase the risk of diseases

C.But some may require a waiting period after your final dose

D.Since HIV and hepatitis can be transmitted through blood

E.You're underweight

F.When you go donate, make sure you have an updated medication list with you

G.You'll have to wait three months before you can give blood