In
preparation for the PET scan the nurse began injecting my arm with a solution
of a glucose derivative that had been radioactively labeled with
fluorine-18. With a short half-life of
only…wait, wait, this isn’t a chemistry class.
And then I began sipping a solution containing an organic iodine
compound that would give better contrast to the images from the CT scans. It
had an odd sort of “I’ve been cleaning up a dirty basement or garage” taste,
and believe me, it won’t make it into the Coca-Cola Freestyle lineup. After waiting for an hour so that my cells
would absorb the PET chemical, I was ushered into the room housing the large
cylindrical machine that would do both the CT and PET scans.
Another
nice lady helped me climb onto a long, thin table with a pillow made of a cushioned
U-shaped rigid frame. This would make it easy for even me to keep my head
still. She put a cushion under my calves
so that everything would be positioned properly for the scans. It also helped my formerly-broken-but-now-repaired-with-titanium-parts
back feel comfortable, and I was thankful for that. She hooked up my IV to a solution of another
CT contrast dye and then a motor moved me into the machine. The dye gave me a nice warm sensation through
various parts of my body, particularly noticeable in my pelvic region.
“HOLD
YOUR BREATH,” the machine commanded me in a stern male voice that probably came
from some technical guy who hadn’t had any human contact for 6-12 months except
through texting. Deep breath, hold
it. I watched the top of the cylinder
over me as the machine slowly sucked me into its bowels. And then it stopped. “BREATHE,” he ordered. You don’t need to tell me that twice. And my body moved back out. “HOLD YOUR BREATH.” I noticed that there were little labels in
various places above me that said, “LASER APERTURE Do not stare into the
beam.” And they were all upside down! That was annoying. I’m pretty sure that these labels were there
in order to warn Male Machine Man so that he wouldn’t harm himself while he was
aligning the many parts in the scanner. “BREATHE.” Oh, yes, yes, yes, I will. “HOLD YOUR BREATH.” I had no idea that I could still hold my
breath for such a long period of time. And
out my body went again. “BREATHE.” I was starting to feel like a large loaf of bread
in an oven, with somebody pulling me out every now and then in order to see if
I was done.
The
nice lady disconnected my IV, had me put my arms by my sides, and then gently
locked me in place with two huge pieces of Velcro so that I wouldn’t move. I’m pretty sure that this is what the
Inquisition would have been like if Spain had been more compassionate and
politically correct. And then the large
EZ Bake oven started back up again, baking me one section at a time. Thankfully MMM wasn’t barking orders at me
anymore.
You
can think about a lot of things during a 30-minute PET scan. Things like, “If that smoke detector on the
ceiling has americium in it, couldn’t that interfere with the scan?” You notice the whirring of the machine, the sound
of the HVAC system, the flow of air over your body, and the local
country-western station that was being played in the background just quietly
enough so that you couldn’t understand most of the words. It sounded something
like somebody gargling with corned-beef hash.
And then the itching started.
The
worst kind of itch is the one you can’t scratch. During one of the times that my head and part
of my torso were sticking out of the far end of the machine I suddenly
developed an itch. I didn’t know if it
was due to the AC blowing on me or the result of a traitorous hair sticking me
in the forehead. Either way it didn’t
matter–it just itched. Helpfully the
inquisitor had made sure that the strait jacket was snug. I’m pretty sure that Houdini worked at a burger
joint until one day during a PET scan he realized that he could scratch his
head only if he could get out of the Velcro.
I manfully endured it, and in a few minutes it went away, shortly before
the right edge of my right eye started itching.
And
then there are the more serious thoughts. What would it be like to go through
this alone? What do people who don’t
have relationships with God think about during PET scans? In an email one of my sisters-in-Christ reminded
me of Deuteronomy 33:27: “The eternal
God is your dwelling place, and underneath are the everlasting arms.” Why wasn’t I worried about the outcome of
these tests? Why wasn’t I afraid? I again heard the words of Christ, “I will
never leave you nor forsake you.”
(Hebrews 13:5) Although I was in
the scanner, God was gently cradling me in His arms, comforting me.
Amen to this! I remember having a Pet scan 8 years ago, when they were looking for ovarian cancer, that year I was sick and weak so much. This describes it well! Plus you are so funny, Brian. So thankful for the constant arms and strength of God, your Saviour, Shepherd, Creator, Protector, King and Friend.
ReplyDeleteBut what is the half-life of fluorine-18? Some of us want to know! Keeping up with ur posts and praying for u!
ReplyDelete