Thyrogen Injection #1

I was scheduled to have my first thyrogen injection this morning.  I'm going to go meta and talk about the reason for the injection first and then I'll give the play-by-play for those of you who are on the edge of your seats with popcorn poised between bucket and mouth, eager to know how I overcame this mornings tribulations.

The reasoning behind the thyrogen basically goes like this:

• They took out my thyroid but there may be still some cancer cells working somewhere.
• Those cancer cells are a lot like normal thyroid cells and will respond to the same signals
• Because I don't have a thyroid I take hormone replacement medication daily
• SinceI have enough of the right hormone in my body, my brain isn't signaling the need to make hormones.
• Thus any cancer cells are also not thinking "hey I should try to make some hormones"
• We want the cancer cells to fire up the production line because then they'll want iodine, a key component in thyroid hormones, so when we introduce irradiated iodine to my system they'll willingly drink the kool-aid as it were.

Most people think that the brain is what gets all of the work in the body done, and to some degree this is correct.  The brain is like the Big Boss.  He comes in an makes a bunch of snap decisions and then leaves it to the middle managers, the organs of the endocrine system, to get the work done. They put out work orders in the form of hormones and these hormones act as long standing orders to the body telling individual cells what functions to perform.  

Thyrogen tells cells with the right receptor to make thyroid hormones, but it will only be released if the brain says the levels are low.  However, the system can be subverted by adding a massive dose of thyrogen via injection.  Normally this would be Not a Nice Thing but since I don't have a thyroid it has very little affect on me (other than another spontaneous nap).  

The upshot is that with thyrogen they can prime the cancer cells to take up the iodine without me having to stop my thyroid medication.  In the past I would have had to stop my hormone medication for a week and allow my body to naturally produce thyrogen, but stopping the medication makes you feel like serious butt because thyroid hormones control metabolism.  Without metabolism you have no energy and you turn into a cranky sloth.

So that's why I got up at 8 a.m. this morning to go get stuck with needles.  Now here's what happened...

My nurse Katie kindly scheduled to have my injections done at the clinic here in town rather than making me have to drive in to Seattle in rush hour traffic.  I walked into the clinic 15 minutes before my appointment because I can never trust these things to go well.  At the receptionist desk I was told they didn't have me on the schedule for that day.  Initiate panic.  I'd just spent the last week on my No Chocolate Makes Me Angry diet and Katie had told me they have to special order the thyrogen because it is quite expensive.  

I was asked to take a seat so I sat as close to the desk as I could. From the conversation going on behind the desk I gathered that they had in fact ordered the medication (sigh of relief) but that by some mistake my appointment had never been made.  Thankfully nurses are not like doctors.  Nurses have this magic ability to make time out of nothing so the wonderful Judy showed up shortly thereafter to apologize for the mixup and escort me back into the room.

Since I wasn't on the schedule, no preparations had been made in advance and thyrogen injections aren't a normal thing, I'm guessing by the fact that it was special ordered.  I probably should have been more concerned by Nurse Judy having to read the packaging insert and the side of the box to figure out what to do with it but hey, we've all been there, amiright, ladies?  In short order she figured it out -- or I trust that she did because she seemed confident, and that's all that matters in most cases.

Thyrogen has to be injected in a big muscle so I got to drop my pants (a few inches) for this one.  It's not like in the movies where they aim right for the cheeks.  It actually goes in at about the level of the hip bones.  I've gotten a lot of shots and the worst are the ones that burn for a long time after. Thankfully this was not that sort.  So after a little exciting 8:45 am panic all ended well. They've got me on the schedule for tomorrow morning so I get to do this all over again.

I also got an extra needle stick this morning that I won't get tomorrow.  It was a blood test for hCG (human choriogonadatropin) which is the hormone produce by the placenta, e.g. a pregnancy test.  This is so they don't irradiate anyone who is pregnant but doesn't know.  Given my medical history, I already know it'll be negative, but it's nice to know they take all the precautions.

And now I think I shall have another nap.