Table 1.

Uniqueness for four, five, and six consecutive results of 10 representative laboratory tests and two panels (CBC and CHEM7)

Individual laboratory tests
	Number of consecutive laboratory tests and proportion unique (with number of items qualifying for analysis)
Test name	4	5	6
pH	0.590 (N=83 941)	0.937 (N=75 954)	0.994 (N=69 175)
Gluc	0.996 (N=133 259)	1.000 (N=110 669)	1.000 (N=93 693)
Ca	0.723 (N=51 905)	0.974 (N=41 140)	0.998 (N=33 283)
LymAbs	0.986 (N=27 591)	0.998 (N=22 361)	1.000 (N=18 615)
PCV	0.195 (N=201 941)	0.575 (N=172 619)	0.886 (N=149 514)
PT-INR	0.343 (N=47 768)	0.559 (N=38 875)	0.725 (N=32 188)
Chol	1.000 (N=780)	1.000 (N=613)	1.000 (N=478)
SGPT	0.996 (N=12 655)	0.999 (N=9807)	1.000 (N=7850)
CK	0.963 (N=6509)	0.979 (N=3659)	0.986 (N=2219)
Alb	0.649 (N=11 520)	0.924 (N=8606)	0.989 (N=6580)
Panel name	Laboratory panels
CBC (five components)	0.988 (N=211 777)
CHEM7 (seven components)	0.989 (N=239 253)

Alb, albumin; Ca, calcium; CBC, complete blood count; CHEM7, blood test measuring electrolytes, glucose, and renal function; Chol, cholesterol; CK, creatine kinase; Gluc, glucose; LymAbs, absolute lymphocytes; PCV, hematocrit (packed cell volume); PT-INR, international normalized ratio for prothrombin time; SGPT, serum glutamic pyruvic transaminase.