: Which of the following are life-threatening complications of infective endocarditis? Select all that apply. Splinter hemorrhages are indicative of infective endocarditis. Friction rub in the left lower sternal border and pain aggravated by breathing, coughing, and swallowing are signs and symptoms indicative of chronic constrictive pericarditis. Thickening of the endocardium is indicative of rheumatic carditis. 1 out of 1 points Question 53 Under what circumstances is the administration of a nonselective beta-blocker such as atenolol to a hypertensive patient contraindicated? 1 out of 1 points Question 54 Which nursing instruction is benecial to all persons with PAD who have impaired arterial blood ow? out of 1 points Question 55 A client asks how long he will need to take blood pressure medication. The nurse’s response is based on which of the following facts?