Tier 1 — must know
Canine
Endocrine
High yield
Diabetes mellitus
Persistent hyperglycemia + glycosuria · outpatient endocrine core with emergency overlap
⏱ 2–3 min read · Topic 16 of 33
5
Practice Qs
4
Traps
High
Exam freq.
—
Your status
Study step
Exam core — read this first
Classic pattern → polyuria, polydipsia, weight loss despite appetite changes
Diagnosis → persistent hyperglycemia plus glycosuria in the right context
Initial therapy → insulin-based management and owner routine
Board distinction → stable diabetes mellitus is not the same as diabetic ketoacidosis
Clinical mechanism — only what matters
Insulin deficiency → prevents normal glucose use and causes hyperglycemia
Glucosuria → drives osmotic diuresis and PU/PD
Catabolic state → promotes weight loss and weakness
The exam wants the outpatient diabetic pattern and the distinction between stable DM and DKA.
Pattern recognition
Core pattern
PU/PDWeight lossPersistent hyperglycemia + glycosuria
Supporting clues
Cataracts in dogsPolyphagia possibleRecurrent infectionsMiddle-aged to older dogWeakness if poorly controlled
NAVLE trigger: The classic NAVLE move is separating uncomplicated diabetes mellitus from the acidotic, ketotic DKA patient.
Decision core — what NAVLE actually asks
Stable diabetic suspect
→ Confirm persistent hyperglycemia and glycosuria, then begin outpatient insulin planning
Looks systemically ill or ketotic
→ Escalate your thinking toward DKA rather than routine outpatient DM management
Monitoring phase
→ Rechecks and owner consistency matter more than one isolated in-hospital value
Key interpretation
Glucose
↑ High
Persistent, not just stress-related
Urine
Glycosuria
Supports true diabetes
Ketones
Absent in stable DM
Presence raises DKA concern
Weight
Often down
Catabolic effect
Cataracts
Common in dogs
High-yield canine clue
Control
Needs monitoring
Clinical signs and rechecks matter
⚠ Stress hyperglycemia alone is not enough for canine DM. Persistent hyperglycemia with glycosuria in the right clinical picture is the key.
Treatment
Start
Insulin-based therapy with owner education
Routine and consistency are central.
Monitor
Rechecks and adjustment based on clinical control
Do not overreact to a single number in isolation.
Alert
Escalate if ketones or systemic illness appear
That is when routine DM becomes DKA territory.
NAVLE traps — where students lose marks
Stable DM is not DKA
Ketosis and acidosis change the whole treatment framework.
Do not diagnose from one stress hyperglycemia number alone
The overall pattern and urine findings matter.
Owner routine is part of treatment
Feeding and insulin timing are central to control.
Cataracts are a useful canine clue
They often appear in dog diabetes questions.
Differentials — how to separate these on NAVLE
Fast separator: Diabetes mellitus is persistent hyperglycemia with glycosuria and the classic PU/PD-weight loss pattern. Distinguish it from DKA and hyperadrenocorticism.
| Problem | Glucose | Ketones | Key separator |
|---|---|---|---|
| Diabetes mellitus | Persistently high | Absent if uncomplicated | PU/PD + glycosuria |
| DKA | High | Present | Acidosis / critical illness |
| Hyperadrenocorticism | May be high | Absent | PU/PD but different endocrine pattern |
| Stress hyperglycemia | Transient | Absent | Lacks full diabetic picture |
| Diabetes insipidus | Normal | Absent | PU/PD without hyperglycemia |
Clinical application tools
These are directly relevant to diabetic case management and escalation into DKA when needed.
30-second revision
PatternPU/PD + weight loss + glycosuria
DiagnosisPersistent hyperglycemia + glycosuria
Treatment coreInsulin + routine
Canine clueCataracts
Critical trapStable DM ≠ DKA
Practice questions
Pre-built NAVLE-style · Diabetes mellitus
0 / 0
Which pattern is most consistent with uncomplicated canine diabetes mellitus?
Which statement about canine DM diagnosis is most accurate?
What is the core outpatient treatment concept for uncomplicated canine DM?
Which finding most strongly suggests a diabetic dog may have progressed to DKA rather than stable DM?
Which finding is a useful species-specific clue in canine diabetes mellitus board questions?