Which of the following statements about vitamin A's role in the body is FALSE?

Lycopene serves as a vitamin A precursor and acts as an antioxidant.

Vitamin A and beta-carotene protect the skin from sun damage.

Vitamin A maintains healthy cells in the mucous membranes.

Vitamin A supports normal fetal development during pregnancy.

Only one-thousandth of the body's vitamin A is in the retina.

A62-year-old man is being treated for an acute myocardial infarction. he originally came to the ed with substernal chest pain and diaphoresis. given his risk factors of hypertension, diabetes, tobacco use, and family history, he is considered high risk. an ecg in the ed reveals a left-bundle branch pattern, and cardiac enzymes are elevated slightly. after a focused evaluation in the ed, the patient receives iv thrombolytics. although his bundle branch pattern never resolves, the patient is chest pain-free and haemodynamically stable after thrombolysis. two days later, however, the patient reports episodes of recurrent chest discomfort and shortness of breath overnight. in evaluating for potential myocardial reinfarction, which of the following is the most appropriate diagnostic test? - creatinine kinase- dynamic ecg changes- lactate dehydrogenase- myoglobin levels- troponin i level