Chapter 15: Diagnostic Techniques Flashcards
Which of the following terms means to predict the outcome of a disease?
A- Diagnosis
B- Prognosis
C- Health surveillance
D- Etiology
B- Prognosis
What is the primary evaluation procedure used to determine if an animal has an ectoparasite infestation?
A gross visual examination
In dogs, adult heartworms are found most often in the ________________ and the right ventricle of the heart.
Pulmonary artery
Which diagnostic test is based on the fact that nematode larvae Willa cumulate at the bottom of a funnel?
A- Direct smear
B- Fecal flotation
C- Fecal sedimentation
D- None of the above
C- Fecal sedimentation
Smears can be used to determine the presence of endoparasites in which of the following samples?
A- Feces
B- Sputum
C- Blood
D- All of the above
D- All of the above
What test is used to determine mites?
Skin scraping
What happens in a fecal sedimentation?
Larvae sink to the bottom
What happens in a fecal floatation?
Eggs come to the surface
What test determines some species of pinworms?
Cellophane tape technique
What disease does yellow plasma indicate?
Jaundice
What is specific gravity used to determine?
Dehydration
What is observed when anemia is present?
Low hematocrit
What makes up the buffy coat?
White blood cells
What test is anticoagulated blood used for?
CBC
What test is used to detect antibodies?
Serology
The measurement obtained when you perform a hematocrit represent:
A- the number of cells
B- an average cell volume
C- a percentage
D- none of the above
C- a percentage
In most species, which type of white blood cells are the most numerous?
A- Neutrophils/heterophils
B- Lymphocytes
C- Eosinophils
D- Monocytes
A- Neutrophils/heterophils
The presence of parasites and allergic reactions are two conditions that often cause an elevation n the numbers of which white blood cells?
A- Neutrophils
B- Lymphocytes
C- Eosinophils
D- Basophils
C- Eosinophils
Which test gives information on blood cell morphology?
A- Erythrocyte count
B- Packed cell volume
C- Peripheral blood smear
D- Hematocrit
C- Peripheral blood smear
True or False
Clinical serum chemistries are tests that determine the chemical composition of the blood cells.
False
What is the difference between plasma and serum?
Plasma is the noncellular portion of whole blood (unclotted). Serum is the liquid obtained from blood that has been allowed to clot
Which of the following best describes blood plasma?
A- Whole blood
B- Unclotted blood
C- The liquid portion of unclotted blood
D- The liquid portion of clotted blood
C- The liquid portion of unclotted blood
Measuring an antibody titer can give information about: (choose all that apply)
A- Active infection
B- Past infection
C- Number of times the animal has been exposed to a pathogen
D- Period of time elapsed since the last exposure to the antigen
A- Active infection
B- Past infection
True or False
The best way to obtain a sterile urine sample is to use a catheter inserted in the urethra of the animal.
False
Examination of skin mucus taken from aquatic species under a microscope is also known as:
A- Differential
B- Direct smear
C- Wet mount
D- Tape test
C- Wet mount
True or False
To examine the urinary sediments, the urine should be left undisturbed for several hours before being stained.
False
Hematology can assist the technologist in diagnosis of which of the following health problems?
A- Anemia
B- Dehydration
C- Infection
D- All of the above
D- All of the above
Why can’t viruses be co-identified with bacteria if inoculated on the same agar plate?
Viruses do not grow on artificial media
True or False
An examination of the animal’s cage should be part of the development of the case history of the animal being necropsied.
True
Why should the carcass of an animal never be frozen before necropsy?
Because the formation of ice crystals will disrupt the cell structures and will make tissue examination impossible
True or False
X-rays can penetrate through most body tissues.
True
True or False
Infared radiation is emitted from all objects.
True
Which of the following is an example of a contrast medium/
A- Cadmium
B- Luciferin
C- Bilirubin
D- Gadolinium
D- Gadolinium
In dorsoventral recumbency, which part of the animal do the x-rays strike first?
A- The back
B- The flank
C- The belly
D- The head
A- The back
True or False
Physiological control is important during diagnostic imaging to prevent the introduction of artifact.
True
Which method would you want to use to follow in real time the progress of a catheter from a peripheral blood vessel to the heart?
A- Standard radiography
B- Computed tomography
C- Fluoroscopy
D- Magnetic resonance imaging
C- Fluoroscopy
Which of the following techniques uses a radioisotope to provide images of in vivo biological princesses?
A- Fluoroscopy
B- Ultrasound
C- Magnetic resonance imaging
D- Positron emission tomography
D- Positron emission tomography
