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. 2022 Dec 21;12(1):6. doi: 10.3390/antibiotics12010006

Figure 4.

Figure 4

The 4 Ts of diagnostic stewardship: (1) choosing the right Test from (2) the right Type of sample, collected at (3) the right Time, in order to (4) guide Treatment decisions. The process can be restarted whenever a new laboratory test has the potential to further guide the diagnostic or therapeutic process, or to better monitor the patient’s evolution under treatment.