Flashcards in Pulmonary Hypertension Deck (21):
What is normal pulmonary artery pressure?
What pressure within the pulmonary artery is considered pulmonary hypertension?
What is the pressure range for mild PHT?
What is the pressure range for moderate PHT?
What is the pressure range for severe PHT?
> 75 mmHg
Disease of the pulmonary arteries is considered ____ PHT.
Disease of the pulmonary veins is considered ____ PHT.
What 2 main changes happen within the heart with PHT and are noticeable on echo?
1. Right ventricular hypertrophy
2. Right ventricular dilation
3. Main pulmonary artery enlargement
What is the etiology of right heart failure associated with pulmonary hypertension?
Too much afterload
What signalment would you expect with PHT?
Older, small breed dog
What clinical signs would you associate with PHT?
1. Exercise intolerance
What type of murmur would you hear with PHT?
No murmur / soft murmur
What type of changes would you expect in thoracic radiographs with PHT?
1. RV enlargement
2. Pulmonary artery distension
The velocity of blood flow is determined by a pressure gradient. What is the PG equal to?
4 x velocity^2
What stage of the heartworm is infective?
What life stage(s) of the heartworm is/are susceptible to heartworm preventatives?
L3 and L4
What life stage(s) of the heartworm is/are susceptible to Marlarsomine?
To which life stage of the heartworm is the antibody test responsive?
To which life stage of the heartworm is the antigen test responsive?
Mature adult (female)
If a heartworm antigen test comes up positive, what test should you run next?