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2. Coronary CT calcium scan - Wikipedia

   en.wikipedia.org/wiki/Coronary_CT_calcium_scan

   The tomographic slices of the heart are 3 millimeters thick and average about 50–60 slices from the coronary artery ostia to the inferior wall of the heart. The calcium score of every calcification in each coronary artery for all of the tomographic slices is then summed up to give the total coronary artery calcium score (CAC score). [9]

3. Cardiac imaging - Wikipedia

   en.wikipedia.org/wiki/Cardiac_imaging

   Specifically, it looks for calcium deposits in the coronary arteries that can narrow arteries and increase the risk of heart attack. [17] This severity can be presented as Agatston score or Coronary Artery Calcium (CAC) score. The CAC score is an independent marker of risk for cardiac events, cardiac mortality, and all-cause mortality. [18]

4. What is a coronary calcium scan and is it worth it? 5 things ...

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5. Reference ranges for blood tests - Wikipedia

   en.wikipedia.org/wiki/Reference_ranges_for_blood...

   In addition, some values, including troponin I and brain natriuretic peptide, are given as the estimated appropriate cutoffs to distinguish healthy people from people with specific conditions, which here are myocardial infarction and congestive heart failure, respectively, for the aforementioned substances.

6. Cardiac action potential - Wikipedia

   en.wikipedia.org/wiki/Cardiac_action_potential

   Ionic pumps as discussed above, like the sodium-calcium exchanger and the sodium-potassium pump restore ion concentrations back to balanced states pre-action potential. This means that the intracellular calcium is pumped out, which was responsible for cardiac myocyte contraction. Once this is lost, the contraction stops and the heart muscles relax.

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8. P. K. Sen (surgeon) - Wikipedia

   en.wikipedia.org/wiki/P._K._Sen_(surgeon)

   Prafulla Kumar Sen, popularly known as P. K. Sen, [1] was born on 7 December 1915 in Calcutta, British India. [2] He had one sister and his father was a civil servant. [3]He began his early education at a public school in Jamtada, Bihar, [3] before attending the Victoria College of Sciences, Nagpur.

9. A forever bond issued 400 years ago still pays interest. Here ...

   www.aol.com/finance/forever-bond-issued-400...

   On Dec. 10, 1624, a Dutch water authority sold a bond for 1,200 Carolus guilders to a woman in Amsterdam, promising to pay 2.5% interest in perpetuity.