Overview of Feline Lethargy
Lethargy is a state of drowsiness, inactivity, or indifference in which there are delayed responses to external stimuli such as auditory (sound), visual (sight), or tactile (touch) stimuli. Lethargy may also refer to the general malaise and decreased activity exhibited by cats that do not feel well.
Lethargy is a nonspecific sign associated with many possible underlying systemic disorders. It may have little to no impact on the affected individual; however its presence may represent severe or life-threatening illness. Lethargy of more than a day’s duration should not be ignored, and should be addressed, especially if it persists.
General Causes of Lethargy in Cats
What to Watch For
Diagnostic Tests for Feline Lethargy
As lethargy is a very nonspecific sign and is associated with dozens of physical ailments in cats, baseline laboratory tests are useful in identifying any systemic abnormalities that should be pursued with further testing. Examples of these baseline screening tests include:
If baseline tests are inconclusive or if abnormalities are detected, your veterinarian may consider doing additional diagnostic tests in your cat, such as:
Treatment of Feline Lethargy
When the underlying problem is unknown, it may be difficult or even impossible to treat lethargy symptomatically. Identifying an underlying cause is essential in determining the appropriate treatment plan and care of the patient.
Once therapy has been instituted administer any prescribed medications as directed by your veterinarian. Observe your cat’s general activity and appetite, and notify your veterinarian if any of the symptoms worsen or change.