IV Therapy and Vitamin B12

IV therapy questions start with whether the drip does anything at all and end with what the body already has in reserve. This page lines up six of them in that order, so a reader can see what the next question will be before reaching it.

Does it work, and is it needed

The first question is speed and benefit. AARP asks it directly in Does IV Vitamin Therapy Actually Work?, and Harvard Health frames it as a choice between a health boost or an expensive placebo.

At www.aarp.org, AARP also marks where an IV has a clear job, noting that "an IV can be lifesaving for a patient who is severely dehydrated, nutrient deficient or suffering from a massive infection". That sets the bar for the questions below.

• Does IV hydration work faster than drinking water?
• When is an IV drip medically necessary?

The line itself

Once a reader decides a drip is on the table, the questions turn physical: how the line goes in, and what it can leave behind.

• Is an IV harder to place in older adults?
• Can an IV line cause bruising or infection?

The B12 follow-up

Vitamin B12 is the second half of this subject. Symptoms prompt the first question, and storage answers the follow-up. MedlinePlus, at medlineplus.gov, states: "The body stores vitamin B12 in the liver. It can store a few years' worth of the needed amount." The MedlinePlus vitamin B12 entry covers the rest.

• What symptoms can low B12 levels cause?
• Where does the body store vitamin B12?

Deciding what counts as working

A single drip or injection is one point on a longer line. Decide before the visit what result would count as working, and when you would check it. The questions above are the ones worth settling first.