Companion Animal Key Parameters Flashcards
HR (dog)
- 60 - 140 bpm (size dependent) / 70 - 180 bpm?
- Emergency: > 160 bpm / < 60 bpm
- Shock -> inc HR
HR (cat)
- 170 - 200 bpm / 150 - 210 bpm?
- Emergency: < 160 bpm / > 240 bpm
- Shock -> dec HR
CRT
- < 2 s
- Emergency: < 1 s / > 3 s
Resp rate (dog)
- 10 - 20 bpm
- Emergency: > 50 bpm
Resp rate (cat)
- 20 - 40 bpm
- Emergency: > 50 bpm
Urinary output
- 1 - 2 mL/kg/h
Temp (dog)
- 37.5 - 39.5 C
Temp (cat)
- 37.5 - 39.5 C
PCV (dog)
- 25 - 40%
- Emergency: > 50%
Albumin
- 70 - 80%
Bolus fluid therapy
- Over 10 - 20 min
- 10 - 20 mL/kg
Maintenance FT
- (BW x 30) + 70
Mean arterial pressure (MAP)
- > 60 mmHg
- Dec w/ dec perfusion of organs
- Dec BP - vasodilation
- Inc BP - vasoconstriction
Blood glucose (dog)
- 3.3 - 5.5 mmol/L
Anaemia
- Low RBC, HCT, HGB
- TP unchanged, PCV dec
- If dehydrated - PCV may appear normal, TP raised
Regenerative anaemia
- Inc reticulocytes
- Inc MCV - polychromatophils are larger in size compared to erythrocytes
- Dec MCHC - reticulocytes have lower cytoplasmic Hb
- Inc RDW - reticulocytes are larger in size
Iron deficiency anaemia
- Normo to microcytosis (dec MCV)
- Hypochromasia (dec MCH, will dec MCHC)
- Inc platelet count
Non-regenerative anaemia
- Normocytic (normal MCV)
- Normochromic (normal MCHC)
- MCV, RDW, MCH and MCHC within their reference ranges
Stress leucogram
- Mature neutrophilia (inc segmented neutrophils)
- Lymphopenia (dec lymphocytes)
- Eosinopoenia
- Monocytosis
Hyperproteinaemia - inc protein synthesis, inflammation
- Dec albumin (dec negative APPs)
- Inc globulins (inc positive APPs)
Hyperproteinaemia - haemoconcentration/dehydration
- Inc albumin
- Inc globulin (can be normal in many cases)
- Erythrocystosis
- Pre-renal azotaemia (hypovolemia)
- Concentrated urine (inc urine SG)
Hypoproteinaemia - protein-losing nephropathy (PLN)
- Dec albumin
- Normal globulins (may get dec)
- Marked proteinuria dominated by albuminuria
- Possible evidence of renal insufficiency
- Hypercholesterolaemia + peritoneal effusion - transudate
Hypoproteinaemia - protein-losing enteropathy (PLE)
- Dec albumin
- Dec globulins, or normal globulins
Azotaemia
- Inc urine (or urea nitrogen)
- And/or inc creatinine
Canine hypothyroidism (specific)
- Low total T4
- Inc TSH
Canine hypothyroidism (non-specific)
3/4 of dogs:
- Hypercholesterolaemia
- Hypertriglyceridaemia
1/3 - 1/4 of dogs:
- Mild, non-regenerative (normocytic and normochromic) anaemia
- Inc ALP
- Inc CK
Feline hyperthyroidism (non-specific)
- Inc liver enzyme activities (ALP, ALT, AST) (most common)
- Erythrocytosis
- Macrocytosis (inc volumes of RBC, inc in MCV)
- Stress leucogram - neutrophilia, lymphopenia, eosinopenia
- Azotaemia
- Hyperglycaemia
- Inc fructosamine
Canine hyperadrenocorticism (Cushing’s disease)
- Leucocytosis
- Stress leucogram - neutrophilia, eosinopoenia, lymphopoenia, monocytosis
- Thrombocytosis
- Inc ALP - only dogs have isoenzyme of ALP induced by glucocorticoids
- Inc ALT, less elevated than ALP
- Hypercholesterolaemia
- Dec circulating total T4 (normal endogenous TSH)
- Low SG <1.015
- Proteinuria
- UTI, blood, protein, pH changes, active sediment or occult UTI
Feline hyperthyroidism (specific)
- Elevated circulating total T4 conc
- Total T4 in reference interval
- Low TSH
Canine hypoadrenocorticism (Addison’s disease)
- Azotaemia
- Dec sodium : potassium ratio (inc intracellular electrolytes, dec extracellular electrolytes)
- Inc potassium
- Dec sodium
- Dec chloride
- Hypercalcaemia
- Hypoglycaemia
- Normal to mild non-regenerative anaemia
- ABSENCE of Stress leucogram
Striated muscle injury
- Inc CK (max inc 6-12 hours after injury, returns to reference interval within 48 - 72 hours)
- Serum AST activity inc slower than serum activities of CK and LDH
- Serum LDH activity inc following muscle injury = less apparent for CK and AST
- Myoglobinuria - associated with inc CK
- Hyperkalaemia - degeneration of large area of skeletal muscle (more commonly associated w/ acid-base + electrolyte balance disorders)
- Muscle damage
Relative erythrocytosis
- Dehydration
- Inc total protein
- Inc albumin
Epinephrine (adrenaline)-mediated response
- Mild neutrophilia/heterophilia (no left shift)
- Lymphocytosis (may be more significant in some species, e.g. cats, birds)
- Monocyte, eosinophil and basophil counts usually within the reference interval
- E.g. A young healthy animal which has experienced fear or excitement (lymphocytosis is a common finding in puppies)
- E.g. 2 Blood sample taken shortly after seizuring activity, or strenuous exercise
Corticosteroid-induced response (cortisol)
- Stress leucogram
- Neutrophilia/heterophilia (usually without a left shift)
- Lymphopenia (inc in cats)
- Eosinopenia
- Monocytosis in the dog and occasionally in the cat
- Inc ALP, GGT, ALT
Inflammation/infection
- Neutrophilia/heterophilia of various severity (a left shift may be present)
- Lymphopenia and eosinopenia may (or may not) be present (endogenous release of cortisol may contribute to these changes)
- Monocytosis may be present (some forms of inflammation e.g. granulomatous inflammation are commonly associated with monocytosis)
Leucocyte summary response in dogs and cats, acute inflammation
- Inc WBC
- Inc segmented neutrophils
- Inc band neutrophils
- Variable change in lymphocytes
Leucocyte summary response in dogs and cats, chronic inflammation
- Variable change in WBC, segmented neutrophils, band neutrophils and lymphocytes
Leucocyte summary response in dogs and cats, overwhelming inflammation
- Dec in WBC
- Dec in segmented neutrophils
- Variable changes in band neutrophils
- Variable changes in lymphocytes
Muscle damage
- Inc CK
- Inc AST
Liver damage
- Normal CK
- Inc AST
- Inc liver enzymes - ALT, ALP
Disproportional change between creatinine (dec) and urea (inc)
- More urea-producing substances e.g. GI H+, ulceration, severe nosebleed absorbed as blood is swallowed -> inc urea in blood
Albumin + TP elevated
- GI loss of proteins
Only albumin elevated
- Renal loss of proteins
Inc ALP
- Inc bile acid
- Steroid therapy
- Inc w/ growing bones
Hypocalcaemia/eclampsia
- Total calcium < 1.6 mmol/L
- Ionised calcium < 0.8 mmol/L
PCV in whelping bitch
- 30%
Neonate temp
- Birth: 36 C
- > 1 w: 37 - 38 C
Neonate HR
- 200 - 220 bpm
- May have soft functional murmur