Nitroglycerin transdermal patches (nitro patches) are used to prevent angina (chest pain) caused by narrowing of blood vessels in coronary artery disease (CAD). It does not work to relieve the pain of an angina attack that has already started. Nitroglycerin is a vasodilator; it works by relaxing the blood vessels (expanding the narrowed vessels) so that the heart does not need to work as hard.
Jason is collecting evidence at a crime scene. He finds a bullet casing and unused ammunition. What should he look for on the casing itself? What will the unused ammunition tell him?
Jason should look for markings called (rifling/casting/impression) on the casing. The unused ammunition will help determine if the casing was from the same (store/gun/lot) as the unused ammunition.
Answer:
Rifling and Lot
Explanation:
I took the test