85 board II
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- A submaximal direct stimulus to a skeletal muscle causes
- contraction of some fibers
- Over a period of time, a man uses 4 liters of oxygen and produces 3 liters of CO, What is his RQ for that period?
- 0.75
- The partial pressure of oxygen in arterial blood is lower than that in alveoli. The condition suggested is
- thickening of the alveolar membrane
- In which of the following situations is an osmotic diuresis observed?
- During diabetes mellitus
- Which of the following statements supports the observation that the glomerulus acts like a simple physical microfilter?
- Increased concentration of colloids in plasma diminishes the formation of filtrate.
- Following exercise, ventilation is in excess of the metabolic requirement. During this period, the level of lactic acid in blood
- decreases.
- The sensory organs concerned with maintenance of skeletal muscle tonus are
- muscle spindles
- An electrocardiogram showing extra P waves before each QRS complex indicates
- partial heart block
- Within physiologic limits, activity of the respiratory center is decreased directly by
- increased pH.
- The tone of the masseter muscle is maintained by the
- stretch reflex
- The air remaining in alveoli at the end of a forced maximal expiration is the
- residual volume
- Which of the following compounds is NOT involved in coagulation of blood?
- Fe+2
- The natural reservoir for Rocky Mountain spotted fever is
- ticks
- The Lancefield streptococcal group most likely to contain strains pathogenic for man is
- A
- An injection of penicillin into a penicillin-sensitized person may lead to death due to
- constriction of bronchioli and drop in blood pressure
- Prolonged administration of streptomycin may result in damage to the
- auditory nerve
- Dry heat destroys microorganisms primarily by
- coagulation of protein.
- Mycotic organisms are characteristically found microscopically within reticuloenclothelial cells in
- histoplasmosis.
- A number of fungi that commonly cause superficial skin infections belong to the genus
- Trichophyton
- A bacterium well known for its large polysaccharicle capsule is
- Streptococcus pneumonioe
- The progression of impetigo in children involves streptococci and
- staphylococci
- impetigo
- an acute contagious staphylococcal or streptococcal skin disease characterized by vesicles, pustules, and yellowish crusts
- The type of infection commonly transmitted by blood and blood-derived products is
- type B hepatitis
- Serum sickness syndrome is an example of
- a systemic Arthus reaction
- arthus rxn
- a reaction that follows injection of an antigen into an animal in which hypersensitivity has been previously established and that involves infiltrations, edema, sterile abscesses, and in severe cases gangrene
- The eclipse stage of a viral infection is characterized by
- absence of a demonstrable virus particle.
- Which of the following therapeutic agents are classed as broad-spectrum antibiotics
- a) Tetracycline; (b) Chloramphenicol
- Inactivated microorganisms are used in the manufacture of which of the following?
- Salk vaccine
- Acute osteomyelitis is most frequently caused by which of the following microorganisms?
- Staphylococcus
- Which of the following diseases is caused by an agent that produces neither exotoxins nor endotoxins?
- Syphilis
- Specific chemotherapy is useful for treating which of the following conditions?
- Herpes conjunctivitis
- Which of the following agents is most often associated with fatalities following influenzal infections?
- Staphylococcus aureus
- The form of bacterial gene transfer that is least susceptible to DNase and does NOT require cell-to-cell contact is
- transduction
- Two important "post-streptococcal" diseases are
- rheumatic fever and glomerulonephritis
- Hemorrhage is often difficult to curb in patients with liver disorders because of
- hypoprothrombinernia
- A thrombus produced as a result of damage to the ventricular endocardium is characteristic of
- mural thrombus
- Small pin-point hemorrhages that occur on the skin are
- petechiae
- Orchitis is a serious complication in adults with
- mumps.
- Orchitis
- inflammation of a testis
- The disease characterized by radiolucent bone lesions, anemia, hyperglobulinernia and one or more bone marrow tumors containing predominantly plasma cells is
- multiple myeloma
- Heart failure cells are
- hemosiderin-laden macrophages in alveoli.
- A 10-year-old boy bled during tooth extraction. Subsequently, he had multiple bleeding into his joints, especially his knees. Upon questioning, it was reported that a maternal uncle and a male cousin had had similar experiences. The most probable diagnos
- VIII.
- hemosiderin
- a yellowish brown granular pigment formed by breakdown of hemoglobin
- factor VIII
- a glycoprotein clotting factor of blood plasma that is essential for blood clotting and is absent or inactive in hemophilia
- Miliary tuberculosis results from spread of tubercle bacilli by way of
- the blood stream
- Left-sided heart failure or shock may be associated etiologically with
- pulmonary edema
- Long-standing chronic renal insufficiency may produce
- parathyroid hyperplasia.
- In amyloidosis of the tongue, the amyloid is deposited primarily in the
- stromal connective tissue
- stroma
- supporting framework of an organ made up of CT
- Pernicious anemia is best treated with
- vitamin B12.
- Malignant bone tumors likely to be encountered in children or young adults include
- c) Ewing's sarcoma. (d) osteogenic sarcoma
- Thrombotic occlusion of a coronary artery may result in
- infarction of the myocardium, fibrosis of the myocardium, conductive changes.
- Growth of which of the following neoplasms is often influenced by hormones
- Breast carcinoma; (c) Prostatic carcinoma
- Leukocytosis is apt to be present in which of the following conditions?
- Acute abscess, Osteomyelitis
- Which of the following cells are more abundant in chronic inflammation than in acute inflammation?
- Plasma cells
- A patient with which of the following diseases is predisposed to develop osteosarcoma?
- Paget's disease of bone
- A high titer of serum heterophile antibodies is found in patients with which of the following conditions?
- Infectious mononucleosis
- In chronic, granulomatous inflammation, which of the following processes is most likely to predominate?
- Proliferation
- Renin is found in which of the following organs?
- Kidney
- Which of the following is the most common skin cancer in man?
- Basal cell carcinoma
- Ascites
- abnormal accumulation of serous fluid in the spaces between tissues and organs in the cavity of the abdomen
- Which of the following sequelae of fatty nutritional cirrhosis is most likely to result in exsanguination?
- Esophageal varix
- Which of the following is most likely to cause a sudden arrest of heart function
- Cardiac tamponade
- cardiac tamponade
- mechanical compression of the heart by large amounts of fluid or blood within the pericardial space that limits the normal range of motion and function of the heart
- Which of the following may result from chronic bronchitis?
-
Cor pulmonale
Increased airway resistance
Metaplasia and dysplasia of respiratory epithelium - Carcinoma of which of the following tissues has been associated with ingestion of food contaminated with Aspergillus?
- Liver
- An infarct is most frequently characterized by what type of necrosis?
- Coagulative
- Which of the following renal diseases is autosomal dominant?
- Polycystic kidney