misleading information in the tests – EMT Exam For Dummies Review

I am not sure where they are getting the material for these questions. The rationale behind one question in the medical/obstetric section stated that a pregnant woman should be transported in the supine position, which I found alarming. There was no mention of the risk of the gravid uterus compressing the inferior vena cava, resulting in supine hypotension. Further, their numbers for the pediatric ‘Rule of Nines’ were all wrong. They listed each entire arm as 4.5%, and each leg as 9% (correct values are 9% and 13.5%, respectively). Can anybody tell me who wrote these questions, and if they are at all qualified? What is the point of studying the wrong information? Anybody taking the information in this study guide at face value risks failing national registry.
Review by future ralph on EMT Exam For Dummies.