Answer:
Blood gasses are normal. Agonal breathing is characterized by slow, very shallow irregular respirations that result from anoxic brain injury. This will often progress to apnea depending on the underlying cause. Apnea is the absence of breathing.
False, that would be very rude to your partner.
Hit or Spike are also names for an attack.
There are a lot of things that aren't associated with a roundworm infection but you didn't list out your possible answers so if you could make a new answer with the same question but with the different answers that'd be great.