Читать книгу Blackwell's Five-Minute Veterinary Consult: Reptile and Amphibian - Javier G. Nevarez - Страница 202
Оглавление
Hypoglycemia
BASICS
DEFINITION/OVERVIEW
Abnormally low blood glucose concentration. In most species, glucose concentrations fluctuate; normal concentrations range from 60 mg/dl to 200 mg/dl (3.3–11 mmol/l), but lower values could be normal.
ETIOLOGY/PATHOPHYSIOLOGY
Exhaustion, starvation, malnutrition
Septicemia
Hepatobiliary disease
Pancreatic disease
SIGNALMENT/HISTORY
Animals with severe systemic disease may be predisposed.
Long‐lasting anorexia
CLINICAL PRESENTATION
Weakness
Tremors
Loss of righting reflex
Torpor
Unresponsiveness
RISK FACTORS
Husbandry
Poor nutritional status
Others
Systemic disease
DIAGNOSIS
Blood glucose levels below 20 mg/dl (1.1 mmol/l) indicate hypoglycemia.
DIFFERENTIAL DIAGNOSIS
N/A
DIAGNOSTICS
Detection of hypoglycemia in a clinically healthy animal should not cause concern.
In animals with clinical signs and hypoglycemia, attempts should be made to rule out septicemia, hepatobiliary disease, and pancreatic neoplasia.
Glucose may be artificially low in blood samples stored for a prolonged period prior to separation of plasma/serum.
PATHOLOGICAL FINDINGS
Depends on underlying etiology
• The pancreas should be thoroughly evaluated.
TREATMENT
APPROPRIATE HEALTH CARE
N/A
NUTRITIONAL SUPPORT
Consider energy‐rich nutritional support by stomach tube in cases of anorexia.
CLIENT EDUCATION/HUSBANDRY RECOMMENDATIONS
If related to poor nutrition and management, educate clients on appropriate feeding practices.
MEDICATIONS
DRUG(S) OF CHOICE
Treat underlying disease
Supportive administration of glucose or dextrose parenterally (e.g., 2.5% in 0.45% saline, 20–40 mL/kg SC) or orally (3 g/kg PO) may be indicated.
PRECAUTIONS/INTERACTIONS
N/A
FOLLOW‐UP
PATIENT MONITORING
Monitor glucose levels and clinical signs.
EXPECTED COURSE AND PROGNOSIS
If related to nutritional status prognosis is good.
If secondary to severe systemic disease prognosis is poor.
MISCELLANEOUS
COMMENTS
N/A
ZOONOTIC POTENTIAL
N/A
SYNONYMS
N/A
ABBREVIATIONS
PO = per os
SC = subcutaneous
INTERNET RESOURCES
Kaplan M. Hypoglycemia and Hyperglycemia in Reptiles. Melissa Kaplan’s Herp Care Collection, January 1, 2014. www.anapsid.org/diabetes.html .
Suggested Reading
1 Campbell TW. Clinical pathology. In: Mader DR, Divers SJ, eds. Current Therapy in Reptile Medicine and Surgery. St. Louis, MO: Elsevier; 2014:70–92.
2 Stahl SJ. Hyperglycemia in reptiles. In: Mader DR, ed. Reptile Medicine and Surgery. 2nd ed. St. Louis, MO: Elsevier Saunders; 2006:822–830.
Author Mads F. Bertelsen, DVM, DVSc, DACZM, DECZM (Zoo Health Management)