Neupsy Key

11Physiology 1. C Activation of S2-S4 α-motor neurons causing contraction of the external urethral sphincter striated muscle fibers. The external urethral sphincter is under voluntary (somatic) control, and muscle fiber…

20Competencies/Health Care/Biostatistics 1. C Positive predictive value The positive predictive value indicates how often a patient has a disease given a positive test result. (A) The sensitivity indicates how often…

10Competencies/Health Care/Biostatistics 1. An HIV test result is positive. The patient asks how likely he is to have HIV, given this positive result. The patient is asking about what aspect…

16Radiology 1. A Radiation necrosis Radiation necrosis typically presents with higher apparent diffusion coefficient (ADC) values compared with tumor recurrence, which tends to show restricted diffusion and therefore lower signal…

2Anatomy 1. A lesion in the pulvinar nucleus of the thalamus can result in: A. Neglect syndromes B. Anosmia C. Contralateral sensory loss D. Endocrine dysfunction and abnormalities E. Memory…

9Critical Care 1. Dimercaprol, when used as a chelation agent, can increase the brain concentrations of which metal? A. Lead B. Arsenic C. Cadmium D. Chromium E. Mercury 2. A…