Veterinary Dermatology Quiz
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Questions and Answers

Which area of the body is typically affected by atopic dermatitis?

  • Ventral region
  • Dorsal region
  • Trunk and legs
  • Face and feet (correct)
  • What could a response to small doses of glucocorticoids indicate?

  • Contact dermatitis
  • Allergic dermatitis (correct)
  • Mite infestation
  • Bacterial skin infection
  • Which of the following conditions is primarily associated with lesions on the dorsal region?

  • Hypothyroidism
  • Endocrine hair loss
  • Cheyletiellosis (correct)
  • Scabies
  • What effect can excessive bathing have on skin disease?

    <p>Can predispose to skin disease (D)</p> Signup and view all the answers

    Systemic illnesses may first show signs on the skin, particularly in which of the following conditions?

    <p>Diabetes mellitus (A)</p> Signup and view all the answers

    What does the presence of fleas or ticks suggest in relation to skin conditions?

    <p>Contagious skin diseases (A)</p> Signup and view all the answers

    What might a lusterless and thin haircoat indicate?

    <p>Systemic disease (C)</p> Signup and view all the answers

    What could previous treatments that responded well to antibiotics suggest?

    <p>Bacterial skin disease (D)</p> Signup and view all the answers

    Which of the following is classified as a secondary skin lesion?

    <p>Crusts (D)</p> Signup and view all the answers

    What is a cause of glucosuria associated with renal tubular defects?

    <p>Fanconi syndrome (D)</p> Signup and view all the answers

    What is the main purpose of skin scrapping procedures?

    <p>To determine the presence of mites (C)</p> Signup and view all the answers

    What is the technique used in Hair Trichogram?

    <p>Plucking hairs close to the base and examining them microscopically (D)</p> Signup and view all the answers

    Which factors can lead to false-negative results in glucose testing?

    <p>High urinary concentration of ascorbic acid (A)</p> Signup and view all the answers

    What type of urine component do ketone test pads specifically measure?

    <p>Acetoacetic acid (A)</p> Signup and view all the answers

    Which characteristic is not associated with hyperkeratoses?

    <p>Loss of epidermis (A)</p> Signup and view all the answers

    What is the role of cytology in skin examination?

    <p>To identify bacterial, fungal, and neoplastic skin diseases (A)</p> Signup and view all the answers

    Which condition is NOT typically associated with ketonuria?

    <p>Hyperglycemia (C)</p> Signup and view all the answers

    Which of the following is true about lichenification?

    <p>It involves increased thickening and hyperpigmentation of the skin (A)</p> Signup and view all the answers

    What substance in ketone test pads reacts to form a purple color change?

    <p>Nitroprusside (A)</p> Signup and view all the answers

    Flea combing is primarily used to:

    <p>Find flea dirt in allergy dermatitis patients (A)</p> Signup and view all the answers

    What contamination can lead to false-positive results in urine glucose testing?

    <p>Hydrogen peroxide (B)</p> Signup and view all the answers

    What is the primary clinical use of Ictotest® Reagent Tablets?

    <p>Detecting bile pigments (B)</p> Signup and view all the answers

    What type of stain is adequate for examining impression smears of the skin?

    <p>Romanowsky-type stain (C)</p> Signup and view all the answers

    What is the main metabolic source of ketones in the body?

    <p>Fatty acid metabolism (A)</p> Signup and view all the answers

    What is the preferred method for urine collection to ensure sterility in dogs and cats?

    <p>Cystocentesis (C)</p> Signup and view all the answers

    At what colony-forming units (CFU)/mL in urine collected by spontaneous micturition are significant numbers of bacteria detected in dogs?

    <p>100,000 CFU/mL or more (D)</p> Signup and view all the answers

    What does an increase in BUN and creatinine levels generally indicate?

    <p>Renal dysfunction (D)</p> Signup and view all the answers

    Which urine culture result is considered suspicious for a urinary tract infection (UTI) in dogs when collected by catheterization?

    <p>1,000–10,000 CFU/mL (B)</p> Signup and view all the answers

    What nonrenal factors can influence the levels of BUN?

    <p>Dehydration and diet (B)</p> Signup and view all the answers

    Which method of urine collection is likely to provide inaccurate results for leukocyte detection in dogs?

    <p>Urine dipstick testing (D)</p> Signup and view all the answers

    When evaluating glomerular filtration rate (GFR), which serum chemistry is considered inferior to creatinine?

    <p>BUN (A)</p> Signup and view all the answers

    What is the CFU/mL threshold in cats for significant bacterial presence in urine when collected by spontaneous micturition?

    <p>10,000 CFU/mL (B)</p> Signup and view all the answers

    What does a weak pulse in animals indicate?

    <p>Reduced cardiac output (D)</p> Signup and view all the answers

    In which conditions might cold extremities be observed in animals?

    <p>Poor peripheral perfusion (A)</p> Signup and view all the answers

    What is indicated by a distended jugular vein in normal adult horses and cows?

    <p>Normal blood volume about 5 to 8 cm above the heart (A)</p> Signup and view all the answers

    What happens to the jugular vein when pressure is applied near the base of the neck in a normal animal?

    <p>It distends rapidly and then empties after pressure release (A)</p> Signup and view all the answers

    What does it indicate if the distension of the jugular vein does not resolve upon release of pressure?

    <p>Congestive heart failure (B)</p> Signup and view all the answers

    Which of these may cause distension of the jugular vein?

    <p>Right-sided heart failure (C)</p> Signup and view all the answers

    What condition may be indicated by flat and empty jugular veins?

    <p>Dehydration or shock (B)</p> Signup and view all the answers

    What anatomical feature can be readily palpated in a newborn calf?

    <p>Apex beat of the heart (C)</p> Signup and view all the answers

    What is the main limitation of using an electrocardiogram (ECG) in detecting heart conditions?

    <p>It cannot reliably detect focal myocardial disease. (B)</p> Signup and view all the answers

    Which of the following is NOT an aspect addressed by a complete echocardiographic study?

    <p>Peripheral blood pressure (C)</p> Signup and view all the answers

    How does echocardiography provide information about the heart?

    <p>It assesses the structure and function of the heart chambers and valves. (A)</p> Signup and view all the answers

    What does the extensive Purkinje network in the bovine heart imply regarding ECG results?

    <p>It reduces the likelihood of inferring ventricular size changes. (C)</p> Signup and view all the answers

    What is a primary use of ultrasonographic evaluation around the heart?

    <p>To detect abnormalities around the heart and details of its internal structure. (C)</p> Signup and view all the answers

    Which function is evaluated to assess ventricular diastolic performance?

    <p>Ventricular diastolic function (C)</p> Signup and view all the answers

    Which of the following parameters can echocardiography NOT measure?

    <p>Presence of circulatory shock (B)</p> Signup and view all the answers

    What type of information can echocardiography provide regarding blood flow?

    <p>Specific blood flow disturbances. (D)</p> Signup and view all the answers

    Flashcards

    Primary renal glucosuria

    A condition where glucose spills into the urine, even if blood sugar levels are normal.

    Fanconi syndrome

    A group of disorders affecting the kidneys, causing them to lose essential nutrients and electrolytes in the urine.

    Ascorbic acid

    A substance found in urine that can interfere with glucose test accuracy.

    Formaldehyde

    A by-product of a urinary antiseptic that can lead to false-negative results in glucose tests.

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    Hydrogen peroxide, chlorine, or hypochlorite (bleach)

    Chemicals that can contaminate urine samples and cause inaccurate results in glucose tests.

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    Ketones

    Chemicals produced during fatty acid metabolism, including acetoacetic acid, acetone, and β-hydroxybutyrate.

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    Ketone test pads

    A test that detects the presence of acetone and acetoacetic acid in urine, but not β-hydroxybutyrate.

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    Ictotest® Reagent Tablets

    A test that detects bilirubin in urine.

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    What is the preferred method for collecting urine for bacterial culture?

    The preferred method of urine collection for bacterial culture is cystocentesis, which involves collecting sterile urine directly from the bladder using a needle.

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    Why is a quantitative urine culture important for non-cystocentesis samples?

    If urine samples are collected by methods other than cystocentesis, a quantitative urine culture should be ordered to determine the number of bacteria present.

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    What is the significance of bacteria count in a dog's urine collected via spontaneous micturition or manual compression?

    For urine samples collected by spontaneous micturition or manual compression in dogs, significant numbers of bacteria are present if ≥100,000 CFU/mL of urine are detected.

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    What is the significance of bacteria count in a cat's urine collected via spontaneous micturition or manual compression?

    For urine samples collected by spontaneous micturition or manual compression in cats, significant numbers of bacteria are present if ≥10,000 CFU/mL of urine are detected.

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    What bacteria count range suggests a possible UTI in dogs and cats?

    Samples with >10,000–90,000 CFU/mL in dogs and >1,000–10,000 CFU/mL in cats are considered suspicious for a UTI.

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    How does bacteria count influence UTI diagnosis in dogs with catheterized urine samples?

    For urine samples collected by catheterization in dogs, ≥10,000 CFU/mL is significant for UTI, while 1,000–10,000 CFU/mL is suspicious.

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    How does bacteria count influence UTI diagnosis in cats with catheterized urine samples?

    For urine samples collected by catheterization in cats, ≥1,000 CFU/mL is significant for UTI, while 100–1,000 CFU/mL is suspicious.

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    How can serum chemistry tests be used for diagnosing urinary tract disorders?

    Serum chemistry tests, including BUN, creatinine, calcium, phosphorus, bicarbonate, and electrolytes, can be helpful in diagnosing urinary tract disorders and estimating glomerular filtration rate (GFR).

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    Seasonality of skin problems

    Skin problems that appear and disappear based on the seasons, often due to factors like fleas, allergies, or weather changes.

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    Regional patterns of skin problems

    Specific areas of the body where skin issues first appear, hinting at potential causes like allergies, mites, or hormonal imbalances.

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    Treatment history and response

    The history of treatments and their effectiveness can help determine the underlying cause of skin problems.

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    Bathing frequency and timing

    Recent bathing can mask or alter skin lesions. Over-bathing can contribute to skin problems.

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    Presence of fleas, ticks, or mites

    Presence of fleas, ticks, or mites can cause skin problems and must be assessed.

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    Contact animals

    The presence of other animals can indicate contagious skin diseases like fleas, scabies, or ringworm.

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    Animal's environment

    The animal's environment can influence skin problems. For instance, contact dermatitis can be triggered by changes in housing.

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    Systemic illness and skin

    Skin problems can be a sign of systemic illnesses like thyroid disorders, diabetes, or kidney disease. Look for signs or reports of these conditions.

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    Excoriation

    Areas of skin trauma caused by scratching, rubbing, or picking.

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    Lichenification

    Thickening and darkening of the skin, often due to chronic scratching or irritation.

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    Ulcers

    Loss of the outer layer of skin, creating an open sore.

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    Scales

    A thin, flaky layer of dead skin cells.

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    Crusts

    Dried serum or pus on the skin surface.

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    Hyperpigmentation

    Darkening of the skin, often due to inflammation or sun exposure.

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    Comedones (blackheads)

    A collection of sebum (oil) and keratin in a hair follicle, appearing as a blackhead.

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    Follicular casts

    Plugging of hair follicles with visible keratin.

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    What is an ECG?

    An electrocardiogram (ECG) records electrical activity of the heart. It provides information on heart function and can identify heart rhythm problems.

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    How is ECG useful in cattle?

    ECG is limited for detecting heart diseases in cattle because their hearts have a very complex electrical network.

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    What is echocardiography?

    Echocardiography uses sound waves to create images of the heart. It can measure heart size, wall thickness, valve function, and blood flow.

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    What does a complete echocardiographic study check?

    A complete echocardiographic study assesses various aspects of the heart, including its structure, function, and blood flow.

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    What can ultrasonography detect?

    Ultrasonography can detect abnormalities around the heart and some details of its internal structure.

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    What can echocardiography measure?

    Echocardiography can measure heart size.

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    What else can echocardiography measure?

    Echocardiography can measure heart wall thickness.

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    What else can echocardiography do?

    Echocardiography can assess heart valve function.

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    Weak Pulse

    A weak, difficult-to-detect pulse, often found in animals with decreased blood volume, heart failure, or severe blood loss.

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    Tachycardia (Fast Heartbeat)

    A pulse that speeds up, often in response to pain, excitement, or decreased blood flow.

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    Bradycardia (Slow Heartbeat)

    A pulse that slows down, often due to illness, stress, or certain medications.

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    Apex Beat

    The visible or palpable beating of the heart at its apex, often more prominent in young animals.

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    Normal Jugular Vein Filling

    The jugular vein becomes distended when the jugular vein is blocked, and it quickly returns to normal when the pressure is removed.

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    Distended Jugular Vein

    The jugular vein remains distended even after pressure is released, suggesting a problem with the heart's right side.

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    Flat Jugular Veins

    The jugular veins appear flat and empty due to dehydration or shock.

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    External Abdominal Veins

    Visible veins on the abdomen, also known as 'milk veins', which are normally full of blood.

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    Study Notes

    Systemic Evaluation - Digestive System

    • Systematic bodily system evaluations are crucial for accurate diagnoses during physical examinations
    • Detailed history of the animal aids this process, focusing on affected systems for more thorough evaluation
    • The physical examination should evaluate the animal's digestive system thoroughly.

    Digestive System - Physical Examination

    • Identify abdominal organs during palpation (intestines, small intestines, and urinary bladder) easily visible in dogs, though abdominal effusion or obesity may obscure them.

    • Sedation may be necessary for uncooperative patients.

    • Be cautious about palpation, as rough techniques can elicit responses mimicking abdominal pain.

    • Assess hydration by examining the mucous membrane colour and moisture, and evaluating conjunctiva tear rate

    • Examine the teeth for calculus, fractures, abnormal wear, pulp exposure, extra teeth (supernumerary or retained deciduous), and abnormal odour, and check the bite.

    • Check for oral hemorrhage, cleft palate (in neonates), masses or trauma in the pharyngeal region or tonsillar abnormalities.

    • Palpate the paratracheal area to evaluate for collapse, soft cartilage, or flattening in the trachea.

    • Palpate the salivary glands, larynx, and thyroid gland (if palpable).

    • Evaluate jugular vein distension.

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    Systemic Evaluation PDF

    Description

    Test your knowledge on the various aspects of veterinary dermatology, focusing on conditions like atopic dermatitis and the implications of skin lesions. This quiz covers diagnosis, treatments, and the physiological responses related to skin diseases in animals.

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