Repro Flashcards
What factors can increase anatomic dead space?
increasing body size increasing age increasing lung volume sat posture hypoxia (bronchoconstriction) Lung disease (emphysema) Endotracheal intubation
What is physiologic dead space and what can it be increased by?
sum of anatomic dead space and alveolar dead space
increasing age decreased pulmonary artery pressure IPPV Increasing tidal volume Hyperoxic vasodilation Anesthetic gases Lung diseases (ALI/ARDS, PTE, atelectasis)
What is perfusion limited gas? what is diffusion limited?
Diffusion limited- CO
Persfusion limited- NO
O2 and CO2 are perfusion limited under normal circumstances, but diffusion limitation can occur under some conditions- intense exercise, thickening of blood-gas barrier, and alveolar hypoxia.
Normal A-A Gradient
<15 mmHg
Swann JVECC 2016 Prevalence and risk factors for development of hemorrhagic GI disease in veterinary ICUs in UK
Rate of HE in dogs and cats?
Risk factors?
Associations with mortality?
2-10% depending on ICU in dogs; none in cats
Albumin, administration of GI protectants and institution were significantly associated w/ development
Development of hemorrhagic GI dz and placement of feeding tube significantly associated with mortality.
What anti-emetic can be used in pregnant dogs
reglan
Does brucellosis cause early or late abortions
Late
What problems does canine herpesvirus cause in ear/mid/and late pregnancy?
Early - fetal death and mummification
mid- abortion
Late- Premature birth
May be born healthy but become ill and die w/in first several weeks
What virus is associated with cerebellar hypoplasia in cats?
feline panleukapenia
What is ferguson reflex
Delivery of puppy into cervix triggers release of oxytocin from hypothalamus
What type of placentation do dogs and cats have
endotheliochorial
What is distribution of placenta in dogs and cats?
zonary
What is an example of a progesterone receptor antagonist and what is it used for ?
Aglepristone
Convert a closed-pyo to an open.
What are 3 medical management options for pro
Progesterone receptor antagonists
Prostaglandin F2a
Dopamine agonists. (cause luteolysis by reducing prolactin concentrations)
What is the recurrence rate for medically managed pyometra?
20-77% within 1-2 years
slightly lower in queens- 3/21