A public health researcher wants to estimate the prevalence of obesity among elementary school children in a large city. Because there are over 200 schools, the researcher decides to randomly select 10 schools from the city’s list of schools, then include all students within those selected schools in the study. Which type of sampling method is being used?
A. Stratified random sampling
B. Simple random sampling
C. Cluster sampling
D. Systematic sampling
E.Convenience sampling
C. Cluster sampling
A physical therapist attempts to examine the relationship between scores on a functional independence measure and another measurement whose validity is known. This type of example BEST describes:
A. face validity
B. predictive validity
C. concurrent validity
D.content validity
C. concurrent validity
What is the diagnostic advantage of having a highly sensitive test?
A. With a highly sensitive test. a negative result will most likely rule in a diagnosis
B. With a highly sensitive test, a positive result will most likely rule in a diagnosis
C. With a highly sensitive test, a positive result will most likely rule out a diagnosis
D. With a highly sensitive test, a negative result will most likely rule out a diagnosis
D. With a highly sensitive test, a negative result will most likely rule out a diagnosis
A comparison of the effects of exercise in water, on land, or combined on the rehabilitation outcome of patients with intra-articular anterior cruciate ligament reconstructions revealed that less joint effusion was noted after 8 weeks in the water group. An appropriate statistical test to compare the girth measurements of the three groups is:
A. Independent t-test
B. Analysis of variance
C. Chi square
D. Spearman rho
B. Analysis of variance
A therapist wants to compare frequencies of low back pain occurring in different groups of individuals: truck drivers and computer programmers. The statistical tool to use is:
A. Normal distribution curve
B. One-way ANOVA
C. Chi-square
D. t-test
C. Chi-square
A therapist has completed a study investigating the relationship between ratings of perceived exertion (RPE) and type of testing modality: arm ergometry versus leg ergometry. The therapist finds a correlation 0.59 with the arm testing while the correlation is 0.79 with the leg testing. Interpretation of these results is that:
A. both arm and leg ergometry are highly correlated with RPE.
B. both arm and leg ergometry are only moderately correlated with RPE.
C. leg ergometry is highly correlated with RPE while arm ergometry is only moderately correlated.
D. the common variance of both types of testing is only 22%.
C. leg ergometry is highly correlated with RPE while arm ergometry is only moderately correlated.
Which of the following pertain/s to pharmacokinetics?
I. Aspirin and other NSAIDs inhibit cyclooxygenase enzyme to block production of prostaglandins and thromboxanes.
II. Side effects of opioid analgesics include sedation, mental slowness, euphoria, respiratory depression, orthostatic
hypotension, as well as gastrointestinal distress.
III. The patient’s age influences anesthetic requirements and distribution, with older individuals usually requiring less
anesthetic for a given procedure.
IV. Nitroglycerin is taken sublingually to treat an acute attack of angina.
A. I and II
B. III and IV
C. I, II, and III
D. IV only
E. All of these
B. III and IV
Which of the following medications block receptors of the sinoatrial node and myocardial cells, thereby decreasing the force of
contraction of the heart as well as the heart rate?
A. Thiazide diuretics
B. Calcium channel blockers
C. Alpha-blockers
D. Beta-blockers
E. ACE-inhibitors
D. Beta-blockers
Which of the following decrease catecholamine stimulation of the heart?
A. Calcium channel blockers
B. Diuretics
C. Beta blockers
D. ACE inhibitors
E. Alpha blockers
C. Beta blockers
Which of the following classes of antibiotics exert their primary antibacterial effects by impairing bacterial cell membrane synthesis
and function?
A. Beta Lactam drugs
B. Aminoglycosides
C. Fluoroquinolones
D. Erythromycins
A. Beta Lactam drugs
Which of the following is a medication for major depressive disorder?
A. Lithium
B. Gabapentin
C. Diazepam
D. Fluoxetine
D. Fluoxetine
Which of the following types of cancer has the worst prognosis?
A. Breast cancer
B. Thyroid cancer
C. Lung cancer
D. Cervical cancer
C. Lung cancer
Excessive production of cortisol by the adrenal glands is most likely to result in which of the following clinical features?
A. Weight loss and hyperpigmentation
B. Moon facies and truncal obesity with thin limbs
C. Buffalo hump and generalized muscle hypertrophy
D. Increased bone density and bradycardia
B. Moon facies and truncal obesity with thin limbs
An elderly patient is being examined by the PT. The therapist notes and irregularly dark pigmented ulcer over the medial malleolus. The patient states that it is not painful. The most likely diagnosis is:
A. Arterial ulcer
B. Venous ulcer
C. Diabetic ulcer
D. Arterial insufficiency
B. Venous ulcer
A therapist is examining a patient with full-thickness burns over 20% of the trunk. The correct identification of this burn type by surface
appearance characteristics includes:
A. A dry surface with no blisters
B. Intact blisters and a moist, weeping surface if blisters are removed
C. A wet surface with broken blisters
D. Parchment-like, leathery, and dry surface
D. Parchment-like, leathery, and dry surface
A 25-year-old female patient has sustained burns to the back of the right arm, posterior trunk, front of the left leg, anterior head and neck, and perineum. Using the Rule of Nines, calculate the total body surface area percentage that is burned?
A. 36%
B. 28%
C. 46%
D. 37%
D. 37%
Which of the following would not cause a pressure ulcer when sitting on a wheelchair?
A. Heel
B. Elbow
C. Scapula
D. Ischium
B. Elbow
An 80-year-old male patient reports progressive weakness and difficulty climbing stairs over the past two years. He denies any major illness or unintentional weight loss. Physical examination reveals reduced muscle bulk and grip strength, but his BMI remains stable. Laboratory results are normal. Which of the following best explains the cause of his condition?
A. Protein-energy malnutrition leading to rapid loss of both fat and muscle
B. Muscle wasting secondary to chronic inflammation and malignancy
C. Age-related decline in anabolic hormones and reduced physical activity
D. Acute disuse atrophy following immobilization due to injury
C. Age-related decline in anabolic hormones and reduced physical activity
A 75–year–old male is admitted to the hospital with severe burns after being rescued from a house fire. The patient experiences changes in cognition within a few hours of admission. The patient is confused, disoriented, and having problems focusing their attention. You realize that the patient is probably suffering from:
A. Amnesia
B. Delirium
C. Dementia
D. Alzheimer’s
B. Delirium
According to the DSM-5-TR, dementia is primarily classified as an impairment of which of the following?
A. Memory alone
B. Cognitive functions
C. Psychosocial functions
D. Motor coordination
B. Cognitive functions
A 19-year-old woman is referred to a psychiatrist by her internist after she admits to him that she recurrently pulls hair from her eyebrows to the point that she has scarring and there is little or no eyebrow hair left. She states that her natural eyebrows are “bushy” and “repulsive” and that she “looks like a caveman.” A photograph of the woman before she began pulling her eyebrow hair shows a normal-looking teenager.
What is the most appropriate diagnosis?
A. Normal age-appropriate appearance concerns
B. Trichotillomania (hair-pulling disorder)
C. Body dysmorphic disorder
D. Delusional disorder, somatic type
E. Obsessive-compulsive disorder
C. Body dysmorphic disorder
Which of the following substances, when abused, is most likely to cause symptoms mimicking obsessive-compulsive disorder?
A. Heroin
B. Cocaine
C. Alprazolam
D. Marijuana
E. Lysergic acid diethylamide (LSD
B. Cocaine
Which of the following distinguishes anorexia nervosa from bulimia nervosa?
A. Binge eating
B. Compensatory behaviors
C. Intense fear of gaining weight
D. Abnormally low body weight
D. Abnormally low body weight
Bending of the stereocilia towards the kinocilium of the hair cells results in:
A. Release of less excitatory transmitters
B. Release of more excitatory transmitters
C. Transmission of sound
D. Muffling of sound
B. Release of more excitatory transmitters