w/c 17-Mar-14 Flashcards
For what disease might a salt restricted diet be prescribed?
Chronic heart failure. Increased sodium increases water retention
Valves for a reduced protein diet in dogs/cats
Dogs: Less than 5g/100kcal
Cats: Less than 7g/ 100kcal
When would a reduced phosphrous diet be prescribed? When is it contraindicated?
Chronic kidney failure (with protein)
NOT IN GROWTH PHASE!
Values for a reduced sodium diet
Less than 100mg/100kcal. Controversial as it reduces palatability
Examples of intra-urethral causes of urinary tract obstruction
Calculi, Tumours, Inflammatory disease, foreign bodies
How would a Lower Motor Neurone (LMN) problem present (Urine retention)
Flaccid, overdistended bladder that is easy to express, urine leakage. Congenital, lumbo-sacral disease (Sacral nerves overlie L5)
How would a Upper Motor Neurone (UMN) problem present (Urine retention)
Firm, tense bladder that is difficult to express. Lesions cranial to sacral nerve segements. Intravertebral disk disease
How does a urethral obstruction affect GFR?
Obstructive uropathy, increase ureteral/ tubular pressure–> Increased pressure in Bowman’s space –> GFR falls
Which systemic effects might be seen secondary to urinary obstruction?
Hypovolemia, Hypotension.
Azotemia, Hyperglycaemia, Acidaemia, Hyperphosphataemia, Hypocalcaemia, Hyperkalemia
Which ECG rhythm is characteristic of Hyperkalamia?
Sino-ventricular rhythm (no P waves)
Treatment of Hyperkalemia
EMERGENCY
Fluid therapy. Calcium gluconate - doesn’t affect the potassium concentration but stablises the myocardium
Decompressive Cystocentesis advantages/disadvantages
- Buys time and stablisation, obstructed cats have sterile urine.
- Should aim for neck area of bladder
- Risk of urine leakage –> Septic peritonitis
Contraindications with Indwelling Catheters
Do not use antibiotics when indwelling catheter is used
Considerations after unblocking
Be prepared for:
- Post operative diuresis (keep ins with outs)
- Hypokalaemia (vs Hyper!!) - supplementation
Examples of intra-urethral causes of urinary tract obstruction
Calculi, Tumours, Inflammatory disease, foreign bodies