Basal Testing Question

Hiya,
Sorry if this has been answered before (it probably has) - but the search on these forums isn't the best so I couldn't find what I was looking for.

So having recently changed to Tresiba from Lantus I thought it might be wise to do some proper basal testing, especially since I think I've finally got rid of this stinking cold.
Anyways the questions:
1. I often get dawn phenomenon (about 90% of the time - starting at 3am), how can I basal test in the morning if this has happened cos I'll need my Fiasp as soon as I wake up? (if I'm lucky it only goes up by 3-4 mmol/l by the time I wake up, if not lucky it can be 10-12)
2. It says no food for the relevant time span, does this include stuff with no carbs (eggs, cheese, bacon) - I'm one of those people that is always hungry - making it through a long time span without any food will most likely lead to me not completing the testing or being very very irritable and grumpy (I think this is learned behaviour (that my body still hasn't unlearned) from when I was suffering from malnutrition caused by my undiagnosed coeliac over a number of years)

slip said:

I take it you are going to do a 'section' a day/over 3 days.

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Yeah over 3 days, more than likely not consecutive days - for a start its pub lunch day on friday lunchtime, 2 vodka and diet cokes without food would make for an interesting afternoon and watching the others eat would be a nightmare.

Juicyj said:

1. With DP i'd set the alarm and do a bolus shot at around 3am when the rise starts, as long as your fast acting is out of your system 4 hours before the test starts, then count your morning test from 7am onwards, ideally aim to be below 10 otherwise you will have to stop and take a bolus correction. Do a test first with this to see where your waking reading is though before doing the actual test.

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I may end up doing the tests for all the times except this timeframe then, my DP is too unpredictable to take a bolus at 3am as it starts about then if its going to (doesn't always), but sometimes it's a lot worse than others so I wouldn't really be able to tell til about 4 to 4:30ish as to how much basal I'd need, at which point couldn't start the test til 8:30 at which point I've already been fasting for over 12 hours (I tend to have dinner at about 6pm - so I know all the basal should be gone before I go to bed) and will be starting off hungry. And sugar-free orange squash or diet coke isn't very filling.

Juicyj said:

2. No food means no food, even 0 carb food will raise your BG levels due to gluconeogenesis and converting protein to sugar which will raise your levels and affect the test results.

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Well that's a shame

Will see if i can do one of the time periods over the weekend - probably better to do on a weekend rather than whilst at work.