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Diabetes Insipidus
Unit 4 section 4
| Question | Answer |
|---|---|
| What is this disease also known as? | Water diabetes |
| What are 3 clinical signs? | Extreme PU/PD Vomiting after drinking Possibly weight loss |
| What is the cause of diabetes insipidus? | - Impairment of ADH - Failure in body's response to ADH |
| What SG reading is diagnostic of diabetes insipidus? | <1.009 |
| What does an ADH trial consist of? | An injection of ADH in well hydrated patient and the reading of subsequent urinary SG |
| Diabetes insipidus being caused by the pituitary gland is called what? | Central diabetes inspidus |
| Nephrogenic diabetes insipidus is what? | Collecting tubules in kidney nephron do not respond to ADH and urine is therefore dilute. |
| Which test involves depriving the patient of food and water until 5% of body weight has been lost? | Water deprivation test |
| What is the reading that is diagnostic for diabetes insipidus with the water deprivation tests? | <1.020 SG |
| What is the treatment for this disease? | Desmopressin |