If you use the HTTP headers of each response you make then you do not have to call application/rate_limit_status on a regular basis. Every request has three header values that can help you with this. For example, if I call users/show/:id.json and check the headers in the response, I see:
-> "x-rate-limit-limit: 900\r\n"
-> "x-rate-limit-remaining: 898\r\n"
-> "x-rate-limit-reset: 1506936549\r\n"
In this case, I can see that the rate limit for the endpoint is 900 calls in a 15 minute window; I currently have 898 calls left in my quota; and the window resets at Unix epoch time 1506936549 (which is Monday, 2 October 2017 09:29:09 GMT).
That’s a more reliable way of checking the current position of your call quotas.