The terms "rationally related" and "rational basis" must be employed with care, particularly if either is to be used as a stand-alone test.
Radiology and manometry are complementary investigations in the assessment of UES function, and manometry should not be used as a stand-alone test.
Conclusion: The results indicated that, in this group of volunteers, the supine leg length alignment check had clinical validity as a stand-alone test for recurring back pain.
What form the second tier exam would take remained under consideration, with Gove suggesting that it could be altered to a stand-alone test with a lower-grade ceiling or be an extension paper.
Based on suggestions from that gathering, the committee unanimously passed a proposal that would have required teacher candidates to pass a stand-alone test in reading to become certified in teaching students at the third-grade level or below.
Therefore, this test could be a useful add-on to other genes in the genetic testing panel, but should not be pursued as a stand-alone test.
Considering that such genetic and metabolic variations may limit the efficacy of urinalysis in testing doping, it can be suggested that urinalysis, if used as a stand-alone test, is susceptible to confounding doping results [11 13, 16 21].
With regard to the test performance characteristics of POCUS as a stand-alone test for ADHF, Kajimoto et al. found a sensitivity and specificity of 94 and 91% [9] and Russell et al. reported sensitivity and specificity of 83 and 83% [9, 10].
It is important to bear in mind that for a life-threatening condition such as pneumoperitoneum, US can be used as a screening test but it cannot be used as a stand-alone test to rule out pneumoperitoneum in high clinical suspected cases, nor can be used to rule in pneumoperitonuem and to send patients for surgery without a confirmative test such as CT.
This may still be inadequate for a stand-alone test in a clinical setting.
