FIG. 1 is a front view of a first image of a medical test instrument showing a first embodiment of the claimed design;
FIG. 2 is a front view of a second image thereof;
FIG. 3 is a front view of a third image thereof;
FIG. 4 is a front view of a fourth image thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a left side view thereof;
FIG. 9 is a right side view thereof; and
FIG. 10 is a front top perspective view thereof;
FIG. 11 is a front view of a first image of a medical test instrument showing a second embodiment of the claimed design;
FIG. 12 is a front view of a second image thereof;
FIG. 13 is a front view of a third image thereof;
FIG. 14 is a front view of a fourth image thereof;
FIG. 15 is a back view thereof;
FIG. 16 is a bottom view thereof;
FIG. 17 is a top view thereof;
FIG. 18 is a left side view thereof;
FIG. 19 is a right side view thereof; and
FIG. 20 is a front top perspective view thereof;
FIG. 21 is a front view of a first image of a medical test instrument showing a third embodiment of the claimed design;
FIG. 22 is a front view of a second image thereof;
FIG. 23 is a front view of a third image thereof;
FIG. 24 is a front view of a fourth image thereof;
FIG. 25 is a back view thereof;
FIG. 26 is a bottom view thereof;
FIG. 27 is a top view thereof;
FIG. 28 is a left side view thereof;
FIG. 29 is a right side view thereof; and
FIG. 30 is a front top perspective view thereof;
FIG. 31 is a front view of a first image of a medical test instrument showing a fourth embodiment of the claimed design;
FIG. 32 is a front view of a second image thereof;
FIG. 33 is a front view of a third image thereof;
FIG. 34 is a front view of a fourth image thereof;
FIG. 35 is a front view of a fifth image thereof;
FIG. 36 is a back view thereof;
FIG. 37 is a bottom view thereof;
FIG. 38 is a top view thereof;
FIG. 39 is a left side view thereof;
FIG. 40 is a right side view thereof; and
FIG. 41 is a front top perspective view thereof;
FIG. 42 is a front view of a first image of a medical test instrument showing a fifth embodiment of the claimed design;
FIG. 43 is a front view of a second image thereof;
FIG. 44 is a front view of a third image thereof;
FIG. 45 is a front view of a fourth image thereof;
FIG. 46 is a front view of a fifth image thereof;
FIG. 47 is a back view thereof;
FIG. 48 is a bottom view thereof;
FIG. 49 is a top view thereof;
FIG. 50 is a left side view thereof;
FIG. 51 is a right side view thereof; and
FIG. 52 is a front top perspective view thereof;
FIG. 53 is a front view of a first image of a medical test instrument showing a sixth embodiment of the claimed design;
FIG. 54 is a front view of a second image thereof;
FIG. 55 is a front view of a third image thereof;
FIG. 56 is a front view of a fourth image thereof;
FIG. 57 is a front view of a fifth image thereof;
FIG. 58 is a back view thereof;
FIG. 59 is a bottom view thereof;
FIG. 60 is a top view thereof;
FIG. 61 is a left side view thereof;
FIG. 62 is a right side view thereof; and
FIG. 63 is a front top perspective view thereof;
FIG. 64 is a front view of a first image of a medical test instrument showing a seventh embodiment of the claimed design;
FIG. 65 is a front view of a second image thereof;
FIG. 66 is a front view of a third image thereof;
FIG. 67 is a front view of a fourth image thereof;
FIG. 68 is a back view thereof;
FIG. 69 is a bottom view thereof;
FIG. 70 is a top view thereof;
FIG. 71 is a left side view thereof;
FIG. 72 is a right side view thereof; and
FIG. 73 is a front top perspective view thereof;
FIG. 74 is a front view of a first image of a medical test instrument showing an eighth embodiment of the claimed design;
FIG. 75 is a front view of a second image thereof;
FIG. 76 is a front view of a third image thereof;
FIG. 77 is a front view of a fourth image thereof;
FIG. 78 is a back view thereof;
FIG. 79 is a bottom view thereof;
FIG. 80 is a top view thereof;
FIG. 81 is a left side view thereof;
FIG. 82 is a right side view thereof; and
FIG. 83 is a front top perspective view thereof;
FIG. 84 is a front view of a first image of a medical test instrument showing a ninth embodiment of the claimed design;
FIG. 85 is a front view of a second image thereof;
FIG. 86 is a front view of a third image thereof;
FIG. 87 is a front view of a fourth image thereof;
FIG. 88 is a front view of a fifth image thereof;
FIG. 89 is a back view thereof;
FIG. 90 is a bottom view thereof;
FIG. 91 is a top view thereof;
FIG. 92 is a left side view thereof;
FIG. 93 is a right side view thereof; and
FIG. 94 is a front top perspective view thereof;
FIG. 95 is a front view of a first image of a medical test instrument showing a tenth embodiment of the claimed design;
FIG. 96 is a front view of a second image thereof;
FIG. 97 is a front view of a third image thereof;
FIG. 98 is a front view of a fourth image thereof;
FIG. 99 is a front view of a fifth image thereof;
FIG. 100 is a back view thereof;
FIG. 101 is a bottom view thereof;
FIG. 102 is a top view thereof;
FIG. 103 is a left side view thereof;
FIG. 104 is a right side view thereof; and
FIG. 105 is a front top perspective view thereof;
FIG. 106 is a front view of a first image of a medical test instrument showing an eleventh embodiment of the claimed design;
FIG. 107 is a front view of a second image thereof;
FIG. 108 is a front view of a third image thereof;
FIG. 109 is a front view of a fourth image thereof;
FIG. 110 is a front view of a fifth image thereof;
FIG. 111 is a back view thereof;
FIG. 112 is a bottom view thereof;
FIG. 113 is a top view thereof;
FIG. 114 is a left side view thereof;
FIG. 115 is a right side view thereof; and,
FIG. 116 is a front top perspective view thereof.
The broken lines in the depict portions of the medical test instrument that form no part of the claimed design.
