Thanks for that. This ingestion is definitely a concern as your girl is so small, and given she ate dark, not milk, chocolate. We don't know exactly how much chocolate she ingested as this was only around the marzipan, but if she ingested 30 - 40g worth of dark chocolate here, we would expect mild to moderate symptoms of chocolate toxicity including anything from increased thirst and urination, to restlessness, to even tremors. The marzipan itself is fine and isn't toxic, however could cause GI upset (vomiting and or diarrhea) given the high sugar content).
The best next step would be to have Maggie monitored by your local vet or ER vet for the next few hours. Chocolate toxicity is likely to start showing symptoms after 4 - 5 hours from ingestion. If Maggie had definitely eaten this within the last hour, then inducing vomiting would be the best next step, but it is most likely she ingested this 2 - 3 hours ago.
If for some reason you can't get her monitored tonight, then you will need to keep a close eye on her for the next few hours. In particular, please keep an eye on her mucus membranes, capillary refill time and respiratory rate tonight as follows (do be careful that your girl doesn't try to bite you):
Mucus membranes - flip her lip and look at the color of her gums. They should maintain a nice salmon pink color. Get her to the emergency Vet if they appear white or very pale pink, or if they are a dark deep red color.
Capillary Refill time - this measures blood perfusion and test this by putting your thumb on her gum to apply pressure. After you release your thumb you will see the gum blanch. Capillary refill time is the amount of time it takes (in seconds) for the gum to return to a healthy pink color from the blanched white color. If 2 seconds or less don't worry - if it is taking significantly more time, again - off to the emergency Vet.
Respiratory Rate - if she seems to be panting or breathing rapidly throughout the night, this is a sign of shock and or pain and a signal for a trip to the emergency Vet.
If any of these parameters aren't right, or if any of the symptoms mentioned above start, then please do get her seen tonight. I hope all of the above makes sense? If you have more questions or if I can help in any other way, please do not hesitate to ask! If you would like to accept my answer, please press RATE OUR CONVERSATION (I am not compensated in any other way). Bonuses are always welcome. Thanks! I hope to work with you again soon!
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