patho exam review Flashcards
(265 cards)
Besides dyspnea, what is the most common characteristic associated with pulmonary disease?
a. Chest pain
b. Digit clubbing
c. Cough
d. Hemoptysis
ANS: C
Pulmonary disease is associated with many signs and symptoms, and their specific characteristics often help in identifying the underlying disorder.
Sitting up in a forward-leaning position generally relieves which breathing disorder?
a. Hyperpnea
b. Orthopnea
c. Apnea
d. Dyspnea on exertion
ANS: B
Of the options available, only orthopnea is generally relieved by sitting up in a forward-leaning posture or supporting the upper body on several pillows.
Which statement is true regarding ventilation?
a. Hypoventilation causes hypocapnia.
b. Hyperventilation causes hypercapnia.
c. Hyperventilation causes hypocapnia.
d. Hyperventilation results in an increased partial pressure of arterial carbon dioxide (PaCO2).
ANS: C
Hyperventilation is alveolar ventilation that exceeds metabolic demands. The lungs remove carbon dioxide at a faster rate than produced by cellular metabolism, resulting in decreased PaCO2 or hypocapnia.
What term is used to describe the selective bulbous enlargement of the distal segment of a digit that is commonly associated with diseases that interfere with oxygenation of the blood?
a. Edema
b. Clubbing
c. Angling
d. Osteoarthropathy
ANS: B
Clubbing is the selective bulbous enlargement of the end (distal segment) of a digit (finger or toe) (see Figure 35-1) and is commonly associated with diseases that interfere with oxygenation.
Pulmonary edema and pulmonary fibrosis cause hypoxemia by which mechanism?
a. Creating alveolar dead space
b. Decreasing the oxygen in inspired gas
c. Creating a right-to-left shunt
d. Impairing alveolocarpillary membrane diffusion
ANS: D
Diffusion of oxygen through the alveolocapillary membrane is impaired if the alveolocapillary membrane is thickened or if the surface area available for diffusion is decreased. Abnormal thickness, as occurs with edema (tissue swelling) and fibrosis (formation of fibrous lesions), increases the time required for diffusion across the alveolocapillary membrane
Which condition is capable of producing alveolar dead space?
a. Pulmonary edema
b. Pulmonary emboli
c. Atelectasis
d. Pneumonia
ANS: B
A pulmonary embolus that impairs blood flow to a segment of the lung results in an area where alveoli are ventilated but not perfused, which causes alveolar dead space.
What is the most common cause of pulmonary edema?
a. Right-sided heart failure
b. Left-sided heart failure
c. Mitral valve prolapse
d. Aortic stenosis
ANS: B
The most common cause of pulmonary edema is heart disease. When the left ventricle fails, filling pressures on the left side of the heart increase and cause a concomitant increase in pulmonary capillary hydrostatic pressure.
The collapse of lung tissue caused by the lack of collateral ventilation through the pores of Kohn is referred to as what type of atelectasis?
a. Compression
b. Perfusion
c. Absorption
d. Hypoventilation
ANS: C
Absorption atelectasis is a result of the gradual absorption of air from obstructed or hypoventilated alveoli or from inhalation of concentrated oxygen or anesthetic agents
Which pleural abnormality involves a site of pleural rupture that acts as a one-way valve, permitting air to enter on inspiration but preventing its escape by closing during expiration?
a. Spontaneous pneumothorax
b. Tension pneumothorax
c. Open pneumothorax
d. Secondary pneumothorax
ANS: B In tension pneumothorax, the site of pleural rupture acts as a one-way valve, permitting air to enter on inspiration but preventing its escape by closing up during expiration. As more and more air enters the pleural space, air pressure in the pneumothorax begins to exceed barometric pressure.
Which condition involves an abnormally enlarged gas-exchange system and the destruction of the lung’s alveolar walls?
a. Transudative effusion
b. Emphysema
c. Exudative effusion
d. Abscess
ANS:B
Emphysema is abnormal permanent enlargement of gas-exchange airways (acini) accompanied by the destruction of alveolar walls without obvious fibrosis.
Which condition is not a cause of chest wall restriction?
a. Pneumothorax
b. Severe kyphoscoliosis
c. Gross obesity
d. Neuromuscular disease
ANS: A
Unlike the other options that result in chest wall restriction, a pneumothorax is the presence of air or gas in the pleural space caused by a rupture in the visceral pleura (which surrounds the lungs) or the parietal pleura and chest wall.
Which type of pulmonary disease requires more force to expire a volume of air?
a. Restrictive
b. Obstructive
c. Acute
d. Communicable
ANS: B
Obstructive pulmonary disease is characterized by airway obstruction that is worse with expiration. Either more force (i.e., the use of accessory muscles of expiration) or more time is required to expire a given volume of air
Clinical manifestations of inspiratory and expiratory wheezing, dyspnea, nonproductive cough, and tachypnea are indicative of which condition?
a. Chronic bronchitis
b. Emphysema
c. Pneumonia
d. Asthma
ANS: D
At the beginning of an attack, the individual experiences chest constriction, expiratory wheezing, dyspnea, nonproductive coughing, prolonged expiration, tachycardia, and tachypnea. Severe attacks involve the use of accessory muscles of respiration, and wheezing is heard during both inspiration and expiration.
The most successful treatment for chronic asthma begins with which action?
a. Avoidance of the causative agent
b. Administration of broad-spectrum antibiotics
c. Administration of drugs that reduce bronchospasm
d. Administration of drugs that decrease airway inflammation
ANS: A
Chronic management of asthma begins with the avoidance of allergens and other triggers. The effectiveness of the other options is reliant on the avoidance of triggers.
Clinical manifestations of decreased exercise tolerance, wheezing, shortness of breath, and productive cough are indicative of which respiratory disorder?
a. Chronic bronchitis
b. Emphysema
c. Pneumonia
d. Asthma
ANS: A
The symptoms that lead individuals with chronic bronchitis to seek medical care include decreased exercise tolerance, wheezing, and shortness of breath. Individuals usually have a productive cough (“smoker’s cough”).
Clinical manifestations that include unexplained weight loss, dyspnea on exertion, use of accessory muscles, and tachypnea with prolonged expiration are indicative of which respiratory disorder?
a. Chronic bronchitis
b. Emphysema
c. Pneumonia
d. Asthma
ANS: B
Individuals with emphysema usually have dyspnea on exertion that later progresses to significant dyspnea, even at rest. Little coughing and very little sputum are produced. The individual is often thin, has tachypnea with prolonged expiration, and must use accessory muscles for ventilation.
Which of the following is the most common route of lower respiratory tract infection?
a. Aspiration of oropharyngeal secretions
b. Inhalation of microorganisms
c. Microorganisms spread to the lung via blood
d. Poor mucous membrane protection
ANS: A
Aspiration of oropharyngeal secretions is the most common route of lower respiratory tract infection; thus the nasopharynx and oropharynx constitute the first line of defense for most infectious agents
What is the initial step in the management of emphysema?
a. Inhaled anticholinergic agents
b. Beta agonists
c. Cessation of smoking
d. surgical reduction of lung volume
ANS: C
Chronic management of emphysema begins with smoking cessation.
Clinical manifestations of inspiratory crackles, increased tactile fremitus, egophony, and whispered pectoriloquy are indicative of which respiratory condition?
a. Chronic bronchitis
b. Emphysema
c. Pneumonia
d. Asthma
ANS: C
Physical examination may reveal signs of pulmonary consolidation, such as inspiratory crackles, increased tactile fremitus, egophony, and whispered pectoriloquy, which support a diagnosis of pneumonia
What medical term is used to identify the presence of pus in the pleural space?
a. Plural effusion
b. Asthma
c. Empyema
d. Pneumonia
ANS: C
Empyema is the presence of pus in the pleural space
Fluid in the pleural space characterizes which condition?
a. Pleural effusion
b. Atelectasis
c. Bronchiectasis
d. Ischemia
ANS: A
Pleural effusion is the presence of fluid in the pleural space
What is the first sign of puberty in girls?
a. Breast enlargement
b. Growth of pubic hair
c. Menstruation
d. Vaginal discharge
ANS: A
Of the options available, the first sign of puberty in girls is usually thelarche or breast development.
The release of which chemical mediator causes primary dysmenorrhea?
a. Leukotrienes
b. Prostaglandins
c. Bradykinin
d. C-reactive protein
ANS: B
Primary dysmenorrhea is painful menstruation associated with the release of prostaglandins in ovulatory cycles. This option is the only answer that accurately identifies the chemical mediator associated with dysmenorrhea.
Clinical manifestations that include irregular or heavy bleeding, the passage of large clots, and the depletion of iron stores support which diagnosis?
a. Premenstrual syndrome
b. Dysfunctional uterine bleeding
c. Polycystic ovary syndrome
d. Primary dysmenorrhea
ANS: B
Unpredictable and variable bleeding, in terms of amount and duration, characterize dysfunctional uterine
bleeding. Especially during perimenopause, dysfunctional bleeding also may involve flooding and the passage of large clots, which often indicate excessive blood loss.