Rats, Mice and Hamsters Flashcards
What condition in hamsters is commonly referred to as “wet tail”?
A. Proliferative ileitis
B. Lymphocytic choriomeningitis
C. Cushing’s disease
D. Cardiomyopathy
A. Proliferative ileitis (Lawsonia)
Which of the following statements is true about Syrian hamsters?
A. They can be housed in groups.
B. They should be housed solo.
C. They have constantly growing molars.
D. They can be treated with penicillin.
B. They should be housed solo
Which zoonotic disease can humans contract from rats, and is treated with penicillin in people?
A. Giardia
B. Streptococcus pneumoniae
C. Streptobacillus moniliformis
D. Hymenolepis
C. Streptobacillus moniliformis (Rat Bite Fever)
Which of the following is NOT a recommended treatment for respiratory infections in rats?
A. Enrofloxacin
B. Doxycycline
C. Azithromycin
D. Penicillin
D. Penicillin
What type of mammary gland tumor is commonly found in rats?
Benign mammary fibroadenoma
What type of mammary gland tumor is commonly found in mice?
Malignant mammary adenocarcinomas
Which respiratory pathogen is the #1 cause of pneumonia in both mice and rats?
A. Sendai virus
B. Mycoplasma pulmonis
C. Streptococcus pneumoniae
D. Corynebacterium kutcheri
B. Mycoplasma pulmonis
What medication is used to treat rats with pituitary tumors?
A. Cabergoline
B. Enrofloxacin
C. Ivermectin
D. Azithromycin
A. Cabergoline
( + Prednisone)
Which of the following species gets malignant mammary gland adenocarcinomas?
A. Rats
B. Mice
C. Hamsters
D. Guinea pigs
B. Mice
Which pathogen is NOT typically associated with skin infections in rats?
A. Staphylococcus aureus
B. Mycoplasma pulmonis
C. Mites
D. Fur lice
B. Mycoplasma pulmonis (main resp pathogen)
What is a significant clinical difference between the types of mammary tumors found in rats and mice?
A. Mice commonly get benign fibroadenomas, while rats develop malignant adenocarcinomas.
B. Rats commonly develop benign fibroadenomas, whereas mice often develop malignant adenocarcinomas.
C. Both rats and mice are prone to benign fibroadenomas.
D. Both species primarily develop malignant mammary adenocarcinomas.
B. Rats commonly develop benign fibroadenomas, whereas mice often develop malignant adenocarcinomas.
A 2-year-old female rat presents with ataxia and hind limb weakness. What is the likely diagnosis, and what treatment would you initiate?
A. Pituitary tumor; treat with prednisone and cabergoline.
B. Mammary fibroadenoma; treat with enrofloxacin.
C. Proliferative ileitis; treat with metronidazole.
D. Mycoplasma pneumonia; treat with doxycycline and azithromycin.
A. Pituitary tumor; treat with prednisone and cabergoline.
Which characteristic about rats and mice is true?
A. Mice lack a gallbladder, while rats possess one.
B. Rats have a divided glandular and non-glandular stomach, whereas mice do not.
C. Both mice and rats have continuously growing molars.
D. Mice have porphyrin tear staining due to the Harderian gland, but rats do not.
B. Rats have a divided glandular and non-glandular stomach, whereas mice do not.
What are the recommended medications for treating Mycoplasma pulmonis pneumonia in rats, and which medication would you avoid?
A. Enrofloxacin, doxycycline, avoid penicillin.
B. Azithromycin, prednisone, avoid metronidazole.
C. Cabergoline, prednisone, avoid azithromycin.
D. Ivermectin, metronidazole, avoid doxycycline.
A. Enrofloxacin, doxycycline, avoid penicillin.
A hamster presents with severe diarrhea, rectal prolapse, and a history of recent stress. What is the most likely diagnosis, and which pathogen is the primary concern?
A. Wet tail; Lawsonia intracellularis.
B. Cushing’s disease; Campylobacter spp.
C. Lymphocytic choriomeningitis; Hymenolepis spp.
D. Cardiomyopathy; Mycoplasma pulmonis.
A. Wet tail; Lawsonia intracellularis.
(Proliferative ileitis)
(High morbidity, unfixable)
Which of the following statements best describes why OVH (ovariohysterectomy) is recommended in female rats before 1 year of age?
A. It reduces the risk of malignant mammary tumors and respiratory infections.
B. It is primarily done to prevent pyometra and obesity
C. It eliminates the risk of uterine cancer and cardiovascular disease.
D. It prevents the development of benign mammary tumors and pituitary tumors linked to estrogen.
D. It prevents the development of benign mammary tumors and pituitary tumors linked to estrogen.