Whoa, slow down a minute. You're already dropping tubes and pushing meds right away. You need to take things from the top.
What did PALS teach you about the BP upper and lower limits of a one year old? And what of respirations?
The BP is okay, as is the respiratory rate. What's not okay is the relatively shallow chest rise, unless you're overlooking the fact that peds can be belly breathers. You didn't mention anything about lung sounds, or anything regarding stridor or the absence thereof. Also, asthma isn't diagnosed for a pt of that age.
You made no mention of the pt's mental status. Age appropriate behavior? Irritable? lethargic?
I'm also concerned about the HR. We know that respiratory issues are typically the cause of cardic issues in peds, barring congenital abnormalities. Try some supplemental O2 and then bagging if things don't improve. If the BVM is effective, then you don't need a tube, unless the airway is swelling shut, which is why I asked about stridor.
Regarding the splotches, I would be thinking about a possible allergic reaction to something. Parents are typically introducing all different types of foods to children in this age group. Again, you made no mention of lung sounds. Wheezing? Silent chest? Stridor? Epi SQ, albuterol, benadryl, solu-medrol would be things I would be getting ready to push. With the pale skin, it may be tough to get a line due to shunting, and the SQ epi may not get into systemic circulation. A good EZ IO will fix that. Epi works great in reversing an allergic reaction. Speaking of the IO, if the BP was in fact dropping, and bagging to increase the HR wasn't working, then a fluid bolus could be beneficial. Udse a buretrol so that you don't over bolus the child.
Where are you getting ideas about catheter shear, and what indication do you have for pushing narcan?
BTW, how far along are you in medic class? I'm assuming medic class since you're talking about dropping a tube, narcan, etc.