Cardiovascular/ Pulmonary

Question 1

Which of the following is true during NORMAL aging change of the cardiopulmonary system?

Answer 1

increased LV wall thickness & arterial stiffness

Question 2

Which of the following is true as infants develop into adolescents?

Answer 2

HR decreases and SBP increases (having better strength and tissues at right amount of elasticity and rigidity, RR decreases because of development of lungs and ability to expand ad recoil)

Question 3

infants born before 24 weeks are at risk for life threatening pulmonary distress because

Answer 3

surfactant is developing, but incomplete (structure of the arterial tree is fully developed, efficiency is just improving with the increase in arteries and surfactant)
Risk factors for premature delivery: high risk of infections because low immune system, thermoregulation is not fully functional, digestive system is impaired, post natal development of the nervous system, and the there needs to be development outside the uterus and then there are all these environmental factors that challenge the nervous and sensory system

Question 4

What system mostly accounts for the functional decline of the cardiovascular & pulmonary systems?

Answer 4

Musculoskeletal system (connective tissue changes)