Thank you for your question regarding your Dachshund who is panting heavily right now. There are a number of reasons he may be breathing like this at the moment including anything from being hot (exercising excessively, or from fever - it sounds like his nose and ears are hot), to a primary cardio-respiratory issue, or even due to pain.
If he is constantly panting right now and this hasn't settled or changed at all in the last 10 - 15 minutes, then you really are best of getting your boy seen right now if you can. It is never worth taking any risks with this sort of breathing, as this could quickly deteriorate and become life threatening depending on what the cause is. If you can get your Dachshund seen now - please do.
If not, then for now please keep a close eye
on his mucus membranes, capillary refill time and respiratory rate as follows:
Mucus membranes - flip his lip and look at the color of his gums. They should maintain a nice salmon pink color. Get him 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 his 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 he is continuously panting throughout the night, this is a sign of shock and or pain and a signal for a trip to the emergency Vet.
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