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My pet is lethargic — what now?

There is no single cause of low energy, but the lines are practical: can the pet stand, does it respond to food, and is breathing or urination also wrong.

First, how urgent is this?

Go now

  • Sudden collapse, unable to stand, or no response when called.
  • Pale or white gums.
  • A seizure, or unable to eat or drink before fully conscious.
  • Energy drops suddenly after heat, a car or a closed space.
  • No urine at all, or straining in the litter box.

Contact your vet today

  • Barely getting up all day, and not interested in food.
  • Not eating, not drinking, or not urinating at the same time.
  • A pet with known heart, kidney or diabetic disease, clearly flatter than usual.
  • On medication, with the change matching the dosing times.

Record and observe

  • Tired after a trip out, a change of place or hot weather, recovering with rest and water.
  • Flatter for a day or two after a vaccine or worming, then improving.
  • Already under vet care: record energy, appetite and drinking each day, and bring it to the next visit.

Before you set off

  • When the pet last ate, drank and urinated normally.
  • When the low energy started, and whether it was sudden or gradual.
  • A short daily record of energy and appetite, and the most recent weight.
  • A list of medicines and supplements, with the time of the last dose.
  • Any chance it ate medicine, a plant, human food or something from the bin.
  • Do not give human medicine or energy drinks, and do not force-feed a flat pet.

What your vet may ask and do

  • Ask: when the energy dropped, and whether it was sudden or gradual.
  • Ask: any change in appetite, drinking, urination or stool.
  • Ask: any chance of a toxin, a swallowed object or a head injury.
  • Do: temperature, hydration and circulation assessment.
  • Do: blood tests (glucose, electrolytes, liver and kidney values, thyroid).
  • Do: X-rays or ultrasound where needed.
  • Do: fluids and admission for severe cases.

Where to go in Hong Kong

Call the clinic before you drive over, to confirm tonight's arrangements and the location.