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  2. Prehn's sign - Wikipedia

    en.wikipedia.org/wiki/Prehn's_sign

    [3] According to Prehn's sign, the physical lifting of the testicles relieves the pain of epididymitis but not pain caused by testicular torsion. [4] Negative Prehn's sign indicates no pain relief with lifting the affected testicle, which points towards testicular torsion which is a surgical emergency and must be relieved within 6 hours.

  3. False positives and false negatives - Wikipedia

    en.wikipedia.org/wiki/False_positives_and_false...

    The false positive rate (FPR) is the proportion of all negatives that still yield positive test outcomes, i.e., the conditional probability of a positive test result given an event that was not present.

  4. Phren - Wikipedia

    en.wikipedia.org/wiki/Phren

    Phren, however, is not exclusively applied to humans. In Empedocles' system, Phren is a general psychological agent to which moral blame and praise can be extended, [ 4 ] that darts through the universe as effluences, steers and controls the cosmos in the process and is the measure of what is harmonious and what is fit to exist. [ 5 ]

  5. List of eponymous medical signs - Wikipedia

    en.wikipedia.org/.../List_of_eponymous_medical_signs

    2/3 of the way lateral on a line from umbilicus to anterior superior iliac spine (corresponds to junction of vermiform appendix and cecum) McConnell's sign: M.V. McConnell: cardiology: pulmonary embolism: echocardiography finding of akinesia of the mid-free wall of the right ventricle but normal motion of the apex McMurray test: Thomas Porter ...

  6. Carnett's sign - Wikipedia

    en.wikipedia.org/wiki/Carnett's_sign

    In medicine, Carnett's sign is a finding on clinical examination in which abdominal pain remains unchanged or increases when the muscles of the abdominal wall are tensed. [ 1 ] [ 2 ] For this part of the abdominal examination , the patient can be asked to lift the head and shoulders from the examination table to tense the abdominal muscles .

  7. Signed number representations - Wikipedia

    en.wikipedia.org/wiki/Signed_number_representations

    In the base −2 representation, a signed number is represented using a number system with base −2. In conventional binary number systems, the base, or radix, is 2; thus the rightmost bit represents 2 0, the next bit represents 2 1, the next bit 2 2, and so on. However, a binary number system with base −2 is also possible.

  8. Kehr's sign - Wikipedia

    en.wikipedia.org/wiki/Kehr's_sign

    Kehr's sign is the occurrence of acute pain in the tip of the shoulder due to the presence of blood or other irritants in the peritoneal cavity when a person is lying down and the legs are elevated. Kehr's sign in the left shoulder is considered a classic symptom of a ruptured spleen .

  9. Sign test - Wikipedia

    en.wikipedia.org/wiki/Sign_test

    The sign test is a statistical test for consistent differences between pairs of observations, such as the weight of subjects before and after treatment. Given pairs of observations (such as weight pre- and post-treatment) for each subject, the sign test determines if one member of the pair (such as pre-treatment) tends to be greater than (or less than) the other member of the pair (such as ...