Pre-midterm Flashcards
why take a history?
- part of examination
- establish relationship
- information
- avoid mistakes
- client expectation
- practice building
what are problems with history taking?
- completeness
- bias
- inexperience/misinterpretation
- guilt
- fear
- ownership issues
- management differences
- owner diagnosis
- owner treatment
- language
- herd problem?
- definition of disease
what are special physical examination cases (LA)
- prepurchase
- breeding soundness
- foal health check
- health certificate
- insurance exams
- export paper
what should be assessed on distance exam? (11)`
- attitude
- physical condition
- general body shape
- conformation
- hair coat
- stance
- posture
- environment
- resp rate
- evidence of defecation/urination
- behavior
what is the normal temp of a horse?
37.5-38.5
what is the normal temp of cow
38-39
What is the normal pulse of a horse
28-44
What is the normal pulse of a horse
28-44
What is the normal pulse of a cow?
60-80
What is the normal resp rate of a horse?
8-16
what is the normal resp rate of a cow?
10-30
What is Q, R and S in an ECG?
Q is depolarization of septum, R is deplarization of wall and S is depolarization of upper areas
What is Q, R and S in an ECG?
Q is depolarization of septum, R is depolarization of wall and S is depolarization of upper areas
What is pimobendan?
a postiive inotrope and a vasodilator
what are the main determinants of blood pressure?
CO and systemic vascular resistance
what are two diseases that can increase blood pressure?
- cushings (increased sensitivity to adrenergic hormones so vasoconstriction)
- hyperthyroidism (increased CO)
what is heart failure/cardiac insufficiency?
when the heart cannot meet the demands of the body
what is forward heart failure common in
dilated cardiomyopathy, sometimes in chronic heart failure
What are the signs of forward heart failure
- pulse poor
- hypothermic
- weak
4, hypotensive - prolonged CRT
6 may have syncope - progression to cardiogenic shock
what is the most common congestive heart failure?
left
what are the clinical signs of left sided congestive heart failure?
left atrial enlargement and pulmonary edema
What are the signs of right sided congestive heart failure?
- pleural effusion (cat)
2. ascites (dog)
What are three mechanisms of compensation in cardiovascular physiology?
- frank-starling mechanism
- ventricular hypertrophy
- neurohemoral mechanism
What is the RAAS sstem
Renin is released from the kidney and converts angiotensinogen to angiotensin I, that is converted by ACT to ATII. ATII causes aldosterone release, increased thirst, increased GFR, myocardial hypertrophy, vasoconstriction
What is the RAAS sstem
Renin is released from the kidney and converts angiotensinogen to angiotensin I, that is converted by ACT to ATII. ATII causes aldosterone release, increased thirst, increased GFR, myocardial hypertrophy, vasoconstriction
What are 4 neurohumoral mechanisms that work in compensation (heart)
- RAAS
- adrenergic nervous system
- ADH
- atrial naturetic peptide
Combatting what prolongs lifespan?
neurohumoral activation
what is spironolactone?
aldosterone antagonist
What does the adrenergic nervous system do to the heart?
increase HR, contactility, afterload (vasoconstriction), oxygen demand
What are three examples of diastolic dysfunction? Why is it an issue?
- hypertrophic cardiomyopathy, restrictive cardiomyopathy
- pericardial disease
- tachycardias
What is an issue with pimobendan?
only oral
What is an issue with pimobendan?
only oral
why is important to be thorough with a physical exam? (heart)
There may be something compromizing the ability to treat the heart (renal dz) or something may mimic cardio dz (resp dz)
Why can there be cachexia with heart disease?
underperfusion of the intestines can result in endotoxin, bacteremia, inflammation)–TNF alpha production–cachexia (omega 3 decreases TNF alpha and cachexia)
what on retinal exam can indicates cardio dz?
retinal detachment or hemorrhage (hypertension)
What can change apex beat?
- heart shift
- reduced with effusion
- pneumothorax
- obesity
- DCM