My wife just had her third chemo treatment & last night during her vomiting she threw up blood, not like coffee grinds but like blood. what should we

Vomiting blood: I hope your wife is doing better today. How much blood are you talking here? Is that something that mixed with the emesis or saliva or bright red blood? Sometimes, due to significant vomiting, irritation can happen or a little blood vessel can rupture and can cause a little bleeding, however- i suggest you to d/w her oncologist -1. To let them know about the blood and to ask for better nausea med.

Get evaluated ASAP: Based on your description, your wife is having an upper gastrointestinal bleed and needs urgent evaluation. You can either call her doctor or go to the er. This issue can be serious and life-threatening so i would be evaluated asap.

Go to the ER: This is a medical emergency. You should take her to the er and also give a call to the physician, who is treating her. It seems that your wife is having hemoptysis, which is not coffee ground or black tarry. Hemoptysis is usually bright red in color, like regular blood and is vomitted. Coffee ground or black tarry blood seen, mixed with stools is usually seen with upper GI bleeding.