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  2. Alkali denaturation test - Wikipedia

    en.wikipedia.org/wiki/Alkali_denaturation_test

    The test was developed by Leonard Apt (1922–2013), [3] an American pediatric ophthalmologist. The test was originally used to identify the source of bloody stools in newborn infants. It has been modified to distinguish fetal from maternal hemoglobin in blood samples from any source. [4]

  3. Junctional rhythm - Wikipedia

    en.wikipedia.org/wiki/Junctional_rhythm

    This sinus rhythm is important because it ensures that the heart's atria reliably contract before the ventricles, ensuring as optimal stroke volume and cardiac output. [ 4 ] In junctional rhythm, however, the sinoatrial node does not control the heart's rhythm – this can happen in the case of a block in conduction somewhere along the pathway ...

  4. Hemolytic disease of the newborn - Wikipedia

    en.wikipedia.org/wiki/Hemolytic_disease_of_the...

    Hemolytic disease of the newborn, also known as hemolytic disease of the fetus and newborn, HDN, HDFN, or erythroblastosis fetalis, [1] [2] is an alloimmune condition that develops in a fetus at or around birth, when the IgG molecules (one of the five main types of antibodies) produced by the mother pass through the placenta.

  5. Negative test - Wikipedia

    en.wikipedia.org/wiki/Negative_test

    A negative test can relate to: Negative diagnostic test , a medical test in which the target parameter that was evaluated was not present Negative test variation, a software stress test designed to determine the response of the system outside of normal parameters

  6. T wave - Wikipedia

    en.wikipedia.org/wiki/T_wave

    Repolarization of the ventricle happens in the opposite direction of depolarization and is negative current, signifying the relaxation of the cardiac muscle of the ventricles. But this negative flow causes a positive T wave; although the cell becomes more negatively charged, the net effect is in the positive direction, and the ECG reports this ...

  7. Cardiac marker - Wikipedia

    en.wikipedia.org/wiki/Cardiac_marker

    Test Sensitivity and specificity Approximate peak Description Troponin test: The most sensitive and specific test for myocardial damage. Because it has increased specificity compared with CK-MB, troponin is composed of 3 proteins- Troponin C, Cardic troponin I, and Cardiac troponin T. Troponin I especially has a high affinity for myocardial injury.

  8. Blue baby syndrome - Wikipedia

    en.wikipedia.org/wiki/Blue_baby_syndrome

    [6] [31] If congenital heart disease is suspected in a newborn, doctors will likely perform several tests to evaluate the heart, including a chest x-ray, echocardiogram, and electrocardiogram. [32] In tetralogy of Fallot , episodes in which infants become cyanotic are called tet spells, typically occurring during feeding or crying. [ 18 ]

  9. Cardiac physiology - Wikipedia

    en.wikipedia.org/wiki/Cardiac_physiology

    Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.