North American Veterinary Licensing Examination (NAVLE) Practice Test

Timothy hay is considered the best choice for a horse with hyperkalemic periodic paralysis (HYPP) due to its lower potassium content compared to other types of hay, particularly alfalfa. Horses that suffer from HYPP can experience episodes of muscle twitching and paralysis triggered by high potassium levels in their diet, so it is crucial to manage their potassium intake carefully.

Timothy hay is a grass hay that has a more favorable potassium-to-calcium ratio, making it a safer option for these horses. It provides a balanced source of nutrients while minimizing the risk of increasing potassium levels in the horse's system. In contrast, alfalfa hay tends to be richer in both protein and potassium, which can exacerbate the condition.

Beet molasses contains high levels of potassium and, while it may provide energy, it is not advisable for a horse with HYPP. Brome hay, while generally better than alfalfa, may still not be as low in potassium as Timothy hay, making it a less optimal choice in managing this specific condition.

Overall, Timothy hay supports the dietary management necessary for horses with hyperkalemic periodic paralysis, ensuring they receive appropriate nutrition without elevating potassium levels.