https://www.selleckchem.com/products/napabucasin.html 5%; specificity 93.8%). Procalcitonin was not correlated with heparin-binding protein (  = 0.213,  = 0.115) and absolute neutrophil count (  = 0.393,  = 0.003). High procalcitonin levels in cats were associated with bacterial infection. Hence, procalcitonin could be a valuable marker for diagnosing bacterial infections in cats. High procalcitonin levels in cats were associated with bacterial infection. Hence, procalcitonin could be a valuable marker for diagnosing bacterial infections in cats. The aim of this study was to determine whether transient postictal hyperammonaemia exists in cats. The medical records of all feline patients that presented at a Swedish veterinary hospital between 2008 and 2018 were retrospectively reviewed to find those that had a recent or ongoing epileptic seizure. To qualify for inclusion, the medical record had to include information on at least one ammonia value taken in close proximity to, or during, an active seizure, the cat must have exceeded the normal upper limit of blood ammonia concentration on initial testing (reference interval 0-95 μmol/l), and there needed to be a follow-up ammonia value available within a maximum of 3 days. Five cats were included in the study, and they had blood ammonia concentrations on initial testing ranging from 146 to 195 µmol/l. They were all retested within a period of 2 h to 3 days of the original reading. All five cats had a spontaneous decrease in ammonia levels without any specific treatment for hyperammonaemia. Pursuant to the findings of this retrospective study, transient hyperammonaemia may be noted after epileptic seizure in cats. Consequently, a differential diagnostic list in feline patients with hyperammonaemia could, depending on the context, include non-hepatic-related pathologies, such as epileptic seizures. Pursuant to the findings of this retrospective study, transient hyperammonaemia may be noted after epileptic seizure in cats.