Sum26 Day 2 Final Exam - Lincoln Memorial University - College of Veterinary Medicine
Access The Exact Questions for Sum26 Day 2 Final Exam - Lincoln Memorial University - College of Veterinary Medicine
💯 100% Pass Rate guaranteed
🗓️ Unlock for 1 Month
Rated 4.8/5 from over 1000+ reviews
- Unlimited Exact Practice Test Questions
- Trusted By 200 Million Students and Professors
What’s Included:
- Unlock Actual Exam Questions and Answers for Sum26 Day 2 Final Exam - Lincoln Memorial University - College of Veterinary Medicine on monthly basis
- Well-structured questions covering all topics, accompanied by organized images.
- Learn from mistakes with detailed answer explanations.
- Easy To understand explanations for all students.
Ace Your Test with Sum26 Day 2 Final Exam - Lincoln Memorial University - College of Veterinary Medicine Actual Questions and Solutions - Full Set
Free Sum26 Day 2 Final Exam - Lincoln Memorial University - College of Veterinary Medicine Questions
In domestic cats infected with Highly Pathogenic Avian Influenza (specifically H5N1), which organ systems are most commonly affected with severe clinical signs at presentation?
-
Endocrine and Reproductive
-
Respiratory and Central Nervous System
-
Musculoskeletal and Integumentary
-
Gastrointestinal and Lower Urinary Tract
Explanation
Explanation:
Correct Answer: (B) Respiratory and Central Nervous System Cats infected with HPAI H5N1 commonly present with severe respiratory signs (dyspnea, nasal/ocular discharge) alongside neurologic signs (ataxia, seizures, blindness) due to the virus's tropism for both the respiratory tract and the central nervous system, reflecting its systemic and neurotropic pathogenicity in felines.
Why Other Options are Incorrect:
A. Endocrine and Reproductive — These systems are not characteristically or predominantly affected in feline H5N1 infection.
C. Musculoskeletal and Integumentary — Severe clinical signs of H5N1 in cats are not primarily musculoskeletal or skin-related.
D. Gastrointestinal and Lower Urinary Tract — While some GI signs may occur, the hallmark severe presentation centers on respiratory and neurologic systems, not urinary involvement.
Which feature most strongly supports a secondary immunodeficiency?
-
A known inherited defect in leukocyte adhesion
-
Severe infections beginning shortly after birth
-
Similar disease in several littermates
-
New infections developing after prolonged corticosteroid therapy
Explanation
Explanation:
Correct Answer: (D) New infections developing after prolonged corticosteroid therapy. Secondary immunodeficiencies are acquired conditions caused by external factors, such as long-term immunosuppressive drug therapy, that impair normal immune function.
Why Other Options are Incorrect:
A. A known inherited defect in leukocyte adhesion — This describes a primary (congenital) immunodeficiency caused by a genetic defect, not an acquired condition.
B. Severe infections beginning shortly after birth — This pattern strongly suggests a primary immunodeficiency present from birth rather than one acquired later in life.
C. Similar disease in several littermates — This suggests a hereditary or genetic cause, consistent with primary immunodeficiency rather than a secondary, acquired cause.
A horse sustains an injury that damages the connective tissue sheath surrounding the entire skeletal muscle. The connective tissue surrounding individual fascicles and muscle fibers remains intact. Which structure is damaged?
-
Endomysium
-
Epimysium
-
Sarcolemma
-
Perimysium
Explanation
Explanation:
Correct Answer: (B) Epimysium. The epimysium is the outermost connective tissue layer that surrounds the entire muscle, distinct from the perimysium (around fascicles) and endomysium (around individual fibers), both of which are stated to be intact.
Why Other Options are Incorrect:
A. Endomysium — This layer surrounds individual muscle fibers and is specifically stated to be intact in this scenario.
C. Sarcolemma — This is the cell membrane of an individual muscle fiber, not a connective tissue sheath around the whole muscle.
D. Perimysium — This layer surrounds individual fascicles and is specifically stated to be intact, not damaged.
Which statement best describes a booster response?
-
It transfers passive antibody to the vaccinated animal
-
It is faster and stronger because memory lymphocytes are present
-
It is slower and smaller than the primary response
-
It depends entirely on activation of naïve lymphocytes
Explanation
Explanation:
Correct Answer: (B) It is faster and stronger because memory lymphocytes are present A booster (secondary/anamnestic) response is characterized by a more rapid onset and higher magnitude of antibody production compared to the primary response, due to pre-existing memory B and T lymphocytes from prior antigen exposure that can be quickly reactivated.
Why Other Options are Incorrect:
A. It transfers passive antibody to the vaccinated animal — A booster stimulates active immunity via the animal's own immune memory, not passive antibody transfer.
C. It is slower and smaller than the primary response — This is the opposite of what characterizes a booster response, which is faster and stronger.
D. It depends entirely on activation of naïve lymphocytes — The booster response relies primarily on memory lymphocytes, not naïve ones, which is what distinguishes it from the primary response.
Two sedatives are being evaluated for standing procedures in horses. Drug A produces the desired level of sedation at a lower dose than Drug B. However, increasing the dose of Drug A beyond a certain point does not produce any additional sedative effect, whereas Drug B can achieve substantially greater maximal sedation. Which interpretation BEST describes the relationship between the two drugs?
-
Drug A is both more potent and more efficacious than Drug B.
-
Drug A is less potent because it achieves its effect at a lower dose.
-
Drug A is more potent, whereas Drug B is more efficacious.
-
Potency and efficacy cannot be distinguished without comparing elimination half-lives.
Explanation
Explanation:
Correct Answer: (C) Drug A is more potent, whereas Drug B is more efficacious. Potency refers to the dose required to produce a given effect — since Drug A achieves the desired sedation at a lower dose, it is more potent. Efficacy refers to the maximal effect a drug can produce — since Drug B can achieve a greater maximal sedative effect (higher ceiling), it is more efficacious, even though it requires a higher dose to get there.
Why Other Options are Incorrect:
A. Drug A is both more potent and more efficacious than Drug B — Drug A is more potent, but Drug B, not Drug A, has the higher maximal effect (greater efficacy).
B. Drug A is less potent because it achieves its effect at a lower dose — This misapplies the definition of potency; achieving effect at a lower dose actually means greater, not less, potency.
D. Potency and efficacy cannot be distinguished without comparing elimination half-lives — Potency and efficacy are determined by dose-response relationships (dose needed and maximal effect), not by half-life.
What is the primary purpose of personal protective equipment (PPE) during radiographic procedures?
-
To block exposure from the primary X-ray beam
-
To improve image quality by reducing tissue absorption of X-rays
-
To replace the need for distance and positioning precautions
-
To reduce personnel exposure to scatter radiation
Explanation
Explanation:
Correct Answer: (D) To reduce personnel exposure to scatter radiation PPE such as lead aprons, thyroid shields, and gloves are designed to protect personnel from scatter radiation generated when the primary beam interacts with the patient — they are not designed to withstand or block the primary beam itself.
Why Other Options are Incorrect:
A. To block exposure from the primary X-ray beam — Standard PPE is not rated to safely block the primary beam; personnel should never be positioned in the primary beam even while wearing PPE.
B. To improve image quality by reducing tissue absorption of X-rays — PPE protects personnel, not patients, and has no role in image quality.
C. To replace the need for distance and positioning precautions — PPE supplements, but does not replace, other radiation safety principles like maximizing distance and proper positioning/collimation.
Which of the following statements regarding exotic animal pathology and nutrition is most accurate?
-
Captive reptiles frequently develop metabolic bone disease due to insufficient UVB radiation, low dietary calcium, and inadequate Vitamin D production.
-
Saltwater fish tolerate higher concentrations of un-ionized ammonia than freshwater species, making them immune to "new tank syndrome."
-
Guinea pigs can synthesize Vitamin
Explanation
Explanation:
Correct Answer: (A) Captive reptiles frequently develop metabolic bone disease due to insufficient UVB radiation, low dietary calcium, and inadequate Vitamin D production. Metabolic bone disease (nutritional secondary hyperparathyroidism) is one of the most common and well-documented conditions in captive reptiles, resulting from a combination of insufficient UVB exposure (needed for endogenous Vitamin D3 synthesis), inadequate dietary calcium, and improper calcium:phosphorus ratios.
Why Other Options are Incorrect:
B. Saltwater fish tolerate higher concentrations of un-ionized ammonia than freshwater species, making them immune to "new tank syndrome." — This is false; saltwater (marine) fish are actually generally more sensitive to ammonia, and no fish are "immune" to new tank syndrome.
C. Guinea pigs can synthesize Vitamin C endogenously, whereas rabbits require strict dietary supplementation to prevent scurvy. — This is reversed; guinea pigs, like humans, cannot synthesize their own Vitamin C and require dietary supplementation, while rabbits can synthesize their own.
D. High-calorie diets primarily composed of seeds and fruit mitigate feather-destructive behavior and prevent obesity in captive psittacines (birds). — This is false; seed/fruit-heavy diets are typically high in fat and low in balanced nutrition, contributing to obesity and are associated with, not protective against, behavioral problems like feather destruction.
Three months after vaccination against leptospirosis, a dog is exposed to the pathogen and mounts a rapid, effective response without developing clinical disease. Which property of adaptive immunity is best illustrated?
-
Diversity
-
Nonreactivity to self
-
Tolerance
-
Memory
Explanation
Explanation:
Correct Answer: (D) Memory Immune memory allows the adaptive immune system to recognize and respond more rapidly and effectively upon re-exposure to a previously encountered antigen, such as the leptospirosis pathogen following vaccination, preventing clinical disease. Why Other Options are Incorrect:
A. Diversity Diversity refers to the immune system's ability to recognize a vast array of different antigens, not the enhanced response upon re-exposure to a specific, previously encountered pathogen.
B. Nonreactivity to self This concept relates to the immune system avoiding attack on the body's own tissues, which is unrelated to the rapid protective response against a previously encountered pathogen.
C. Tolerance Tolerance describes immune unresponsiveness specifically toward self-antigens, not the enhanced protective response against a foreign pathogen after prior exposure.
Which fluid profile is most consistent with an exudate?
-
Low protein concentration and high nucleated cell count
-
High protein concentration and low nucleated cell count
-
High protein concentration and high nucleated cell count
-
Low protein concentration and low nucleated cell count
Explanation
Explanation:
Correct Answer: (C) High protein concentration and high nucleated cell count An exudate forms due to increased vascular permeability during inflammation, resulting in fluid that is rich in both protein and inflammatory cells, producing a high protein concentration along with a high nucleated cell count. Why Other Options are Incorrect:
A. Low protein concentration and high nucleated cell count Exudates are characterized by high, not low, protein concentration, since increased vascular permeability allows protein leakage along with cells.
B. High protein concentration and low nucleated cell count While the high protein concentration fits an exudate, a low nucleated cell count is more typical of a transudate, not an inflammatory exudate.
D. Low protein concentration and low nucleated cell count This profile describes a transudate, which results from hydrostatic or oncotic pressure imbalances rather than inflammation, unlike an exudate.
What is the recommended approach to introducing a diet change in a horse's feeding program?
-
Change the diet gradually only during the winter months
-
Change the diet gradually to avoid gastrointestinal upset
-
Change the diet abruptly to meet the horse's caloric needs
-
Change the diet abruptly to match the pasture season
Explanation
Explanation:
Correct Answer: (B) Change the diet gradually to avoid gastrointestinal upset Gradual diet changes allow the horse's gastrointestinal microbiome time to adjust to new feed components, reducing the risk of digestive disturbances such as colic or diarrhea.
Why Other Options are Incorrect:
A. Change the diet gradually only during the winter months Gradual diet transition is recommended year-round, not restricted to a specific season like winter.
C. Change the diet abruptly to meet the horse's caloric needs Abrupt diet changes increase the risk of gastrointestinal upset regardless of caloric intent, making this an unsafe approach.
D. Change the diet abruptly to match the pasture season Even seasonal pasture transitions should be made gradually to protect the horse's digestive health, not abruptly.
How to Order
Select Your Exam
Click on your desired exam to open its dedicated page with resources like practice questions, flashcards, and study guides.Choose what to focus on, Your selected exam is saved for quick access Once you log in.
Subscribe
Hit the Subscribe button on the platform. With your subscription, you will enjoy unlimited access to all practice questions and resources for a full 1-month period. After the month has elapsed, you can choose to resubscribe to continue benefiting from our comprehensive exam preparation tools and resources.
Pay and unlock the practice Questions
Once your payment is processed, you’ll immediately unlock access to all practice questions tailored to your selected exam for 1 month .