Slide Set 5 Flashcards
Wiggers diagram for AS
Ventricular peak exceeds aortic pressure; should be an increase in LAP
Wiggers diagram for MS
Increase in atrial pressure
Wiggers diagram for AR
Increase in pulse pressure seen on aortic pressure tracing
MS has a tendency to send people into ____ HF
Right
Which arteries are the most likely do get damaged? Why?
Endocardial coronary branches/subendocardial arterial plexus; deeper in the hear
Which arteries are less subject to wall stress
Epicardial CAs
Energy requirements are higher deeper in the heart because
need to cycle the Na/K pumps
Reduced ventricular compliance PV loop will show
an increased preload d/t less compliant ventricle; higher pressures needed to achieve EDV of 120
Preload/filling pressures of ____ put the patient at risk for ______
30 mmHg; right heart failure
Concentric hypertrophy can be caused by? What will this cause eventually?
Chronic HTN; aortic stenosis; diastolic HF
Eccentric hypertrophy is the byproduct of?
Overfiling; Aortic/mitral regurg; ventricular septal defect
Over time, eccentric hypertrophy will cause
Systolic HF
Formula for EF
SV/EDV
Patent ductus artiosus is a problem because
it impairs O2 delivery to CV system
The thyroid controls
metabolic rate
Blood supply to thyroid
superior and inferior thyroid arteries
thyroid sits on what important nerves
recurrent laryngeal nerves
the recurrent laryngeal nerves are branches of
the vagus nerve
the recurrent laryngeal nerves control
our ability to speak
the recurrent laryngeal nerves attach to
skeletal muscles of the larynx
What controls the thyroid gland
The hypothalamic pituitary gland system
What is the decision maker to stimulate the thyroid?
The hypothalamus
The hypothalamus is connected to the
anterior pituitary gland
TRH stands for
thyrotropin releasing hormone
TRH receptors are located
in the anterior pituitary gland
The anterior pituitary gland releases
TSH
The T on T3 or T4 indicates
how many iodines the compound has
which compound shuts down the pit gland’s tsh release
thyroxine (t4)
how is the thyroid system regulated
temperature and stress
reduced temperature will cause
increase in thyroid hormone
the posterior pituitary releases
ADH
symptoms of thyroid storm
elevated hr, temp, o2 consumption, ventilation
