Cough, productive
Cough, productive: Excerpt from Handbook of Signs & Symptoms (Third Edition)
Productive coughing is the body's mechanism for clearing airway passages of accumulated secretions that normal mucociliary action doesn't remove. It's a sudden, forceful, noisy expulsion of air from the lungs that contains sputum, blood, or both. The sputum's color, consistency, and odor provide important clues about the patient's condition. A productive cough can occur as a single cough or as paroxysmal coughing, and it can be voluntarily induced, although it's usually a reflexive response to stimulation of the airway mucosa.
Usually due to a cardiovascular or respiratory disorder, productive coughing commonly results from an acute or chronic infection that causes inflammation, edema, and increased mucus production in the airways. However, this sign can also result from acquired immunodeficiency syndrome. Inhalation of antigenic or irritating substances or foreign bodies can also cause a productive cough. In fact, the most common cause of chronic productive coughing is cigarette smoking, which produces mucoid sputum ranging in color from clear to yellow to brown.
Many patients minimize or overlook a chronic productive cough or accept it as normal. Such patients may not seek medical attention until an associated problem — such as dyspnea, hemoptysis, chest pain, weight loss, or recurrent respiratory tract infections—develops. The delay can have serious consequences because productive coughing is associated with several life-threatening disorders and can also herald airway occlusion from excessive secretions.
Emergency interventions
A patient with a productive cough can develop acute respiratory distress from thick or excessive secretions, bronchospasm, or fatigue, so examine him before you take his history. Take his vital signs and check the rate, depth, and rhythm of respirations. Keep his airway patent, and be prepared to provide supplemental oxygen if he becomes restless or confused or if his respirations become shallow, irregular, rapid, or slow. Look for stridor, wheezing, choking, or gurgling. Be alert for nasal flaring and cyanosis.
A productive cough may signal a severe life-threatening disorder. For example, coughing due to pulmonary edema produces thin, frothy, pink sputum, and coughing due to an asthma attack produces thick, mucoid sputum. Assist the patient to clear excess mucous with tracheal suctioning if necessary.
History and physical examination
When the patient's condition permits, ask when the cough began, and find out how much sputum he's coughing up each day. (The normal tracheobronchial tree can produce up to 3 oz [89 ml] of sputum per day.) At what time of day does he cough up the most sputum? Does his sputum production have any relationship to what or when he eats or to his activities or environment? Ask him if he has noticed an increase in sputum production since his coughing began. This may result from external stimuli or from such internal causes as chronic bronchial infection or a lung abscess. Also ask about the color, odor, and consistency of the sputum. Blood-tinged or rust-colored sputum may result from trauma due to coughing or from an underlying condition, such as a pulmonary infection or a tumor. Foul-smelling sputum may result from an anaerobic infection, such as bronchitis or a lung abscess.
How does the cough sound? A hacking cough results from laryngeal involvement, whereas a “brassy” cough indicates major airway involvement. Does the patient feel pain associated with his productive cough? If so, ask about its location and severity and whether it radiates to other areas. Does coughing, changing body position, or inspiration increase or help relieve his pain?
Next, ask the patient about his cigarette, drug, and alcohol use and whether his weight or appetite has changed. Find out if he has a history of asthma, allergies, or respiratory disorders, and ask about recent illnesses, surgery, or trauma. What medications is he taking? Does he work around chemicals or respiratory irritants such as silicone?
Examine the patient's mouth and nose for congestion, drainage, or inflammation. Note his breath odor; halitosis can be a sign of pulmonary infection. Inspect his neck for distended veins, and palpate for tenderness and masses or enlarged lymph nodes. Observe his chest for accessory muscle use, retractions, and uneven chest expansion, and percuss for dullness, tympany, or flatness. Finally, auscultate for a pleural friction rub and abnormal breath sounds — rhonchi, crackles, or wheezes. (See Productive cough: Common causes and associated findings, page 168.)
Medical causes
Actinomycosis.
Actinomycosis begins with a cough that produces purulent sputum. A fever, weight loss, fatigue, weakness, dyspnea, night sweats, pleuritic chest pain, and hemoptysis may also occur.
Aspiration pneumonitis.
Aspiration pneumonitis causes coughing that produces pink, frothy and, possibly, purulent sputum. The patient also has marked dyspnea, a fever, tachypnea, tachycardia, wheezing, and cyanosis.
Bronchiectasis.
The chronic cough of bronchiectasis produces copious, mucopurulent sputum that has characteristic layering (top, frothy; middle, clear; bottom, dense with purulent particles). The patient has halitosis; his sputum may smell foul or sickeningly sweet. Other characteristic findings include hemoptysis, persistent coarse crackles over the affected lung area, occasional wheezing, rhonchi, exertional dyspnea, weight loss, fatigue, malaise, weakness, a recurrent fever, and late-stage finger clubbing.
Bronchitis (chronic).
Bronchitis causes a cough that may be nonproductive initially. Eventually, however, it produces mucoid sputum that becomes purulent. Secondary infection can also cause mucopurulent sputum, which may become blood-tinged and foul-smelling. The coughing, which may be paroxysmal during exercise, usually occurs when the patient is recumbent or rises from sleep.
The patient also exhibits prolonged expirations, increased use of accessory muscles for breathing, barrel chest, tachypnea, cyanosis, wheezing, exertional dyspnea, scattered rhonchi, coarse crackles (which can be precipitated by coughing), and late-stage clubbing.
Chemical pneumonitis.
Chemical pneumonitis causes a cough with purulent sputum. It can also cause dyspnea, wheezing, orthopnea, a fever, malaise, and crackles; mucous membrane irritation of the conjunctivae, throat, and nose; laryngitis; or rhinitis. Signs and symptoms may increase for 24 to 48 hours after exposure, then resolve; if severe, however, they may recur 2 to 5 weeks later.
Common cold.
When the common cold causes productive coughing, the sputum is mucoid or mucopurulent. Early indications include a dry hacking cough, sneezing, a headache, malaise, fatigue, rhinorrhea (watery to tenacious, mucopurulent secretions), nasal congestion, a sore throat, myalgia, and arthralgia.
Lung abscess (ruptured).
The cardinal sign of a ruptured lung abscess is coughing that produces copious amounts of purulent, foul-smelling, and possibly blood-tinged sputum. A ruptured abscess can also cause diaphoresis, anorexia, clubbing, weight loss, weakness, fatigue, a fever with chills, dyspnea, a headache, malaise, pleuritic chest pain, halitosis, inspiratory crackles, and tubular or amphoric breath sounds. The patient's chest is dull on percussion on the affected side.
Lung cancer.
One of the earliest signs of bronchogenic carcinoma is a chronic cough that produces small amounts of purulent (or mucopurulent), blood-streaked sputum. In a patient with bronchoalveolar cancer, however, coughing produces large amounts of frothy sputum. Other signs and symptoms include dyspnea, anorexia, fatigue, weight loss, chest pain, a fever, diaphoresis, wheezing, and clubbing.
Nocardiosis.
Nocardiosis causes a productive cough (with purulent, thick, tenacious, and possibly blood-tinged sputum) and fever that may last several months. Other findings include night sweats, pleuritic pain, anorexia, malaise, fatigue, weight loss, and diminished or absent breath sounds. The patient's chest is dull on percussion.
North American blastomycosis.
North American blastomycosis is a chronic disorder that produces coughing that's dry and hacking or produces bloody or purulent sputum. Other findings include pleuritic chest pain, a fever, chills, anorexia, weight loss, malaise, fatigue, night sweats, cutaneous lesions (small, painless, nonpruritic macules or papules), and prostration.
Plague
(Yersinia pestis). Plague is one of the most virulent acute bacterial infections and, if untreated, one of the most potentially lethal diseases known. Most cases are sporadic, but the potential for epidemic spread still exists. Clinical forms include bubonic (the most common), septicemic, and pneumonic plagues. The bubonic form is transmitted to a human when bitten by an infected flea. Signs and symptoms include a fever, chills, and swollen, inflamed, and tender lymph nodes near the site of the flea bite. Septicemic plague develops as a fulminant illness generally with the bubonic form. The pneumonic form may be contracted from person-to-person through direct contact via the respiratory system or through biological warfare from aerosolization and inhalation of the organism. The onset is usually sudden with chills, a fever, a headache, and myalgia. Pulmonary signs and symptoms include a productive cough, chest pain, tachypnea, dyspnea, hemoptysis, increasing respiratory distress, and cardiopulmonary insufficiency.
Pneumonia.
Bacterial pneumonia initially produces a dry cough that becomes productive. Associated signs and symptoms develop suddenly and include shaking chills, a high fever, myalgia, a headache, pleuritic chest pain that increases with chest movement, tachypnea, tachycardia, dyspnea, cyanosis, diaphoresis, decreased breath sounds, fine crackles, and rhonchi.
Mycoplasma pneumonia may cause a cough that produces scant blood-flecked sputum. Typically, however, a nonproductive cough starts 2 to 3 days after the onset of malaise, a headache, a fever, and a sore throat. Paroxysmal coughing causes substernal chest pain. Patients may develop crackles, but generally don't appear seriously ill.
Psittacosis.
As psittacosis progresses, the characteristic hacking cough, nonproductive at first, may later produce a small amount of mucoid, blood-streaked sputum. The infection may begin abruptly, with chills, a fever, a headache, myalgia, and prostration. Other signs and symptoms include tachypnea, fine crackles, chest pain (rare), epistaxis, photophobia, abdominal distention and tenderness, nausea, vomiting, and a faint macular rash. Severe infection may produce stupor, delirium, and coma.
Pulmonary coccidioidomycosis.
Pulmonary coccidioidomycosis causes a nonproductive or slightly productive cough with a fever, occasional chills, pleuritic chest pain, a sore throat, a headache, backache, malaise, marked weakness, anorexia, hemoptysis, and an itchy macular rash. Rhonchi and wheezing may be heard. The disease may spread to other areas, causing arthralgia, swelling of the knees and ankles, and erythema nodosum or erythema multiforme.
Pulmonary edema.
When severe, pulmonary edema, which is a life-threatening disorder, causes a cough that produces frothy, bloody sputum. Early signs and symptoms include exertional dyspnea; paroxysmal nocturnal dyspnea, followed by orthopnea; and coughing, which may be nonproductive initially. Others include a fever, fatigue, tachycardia, tachypnea, dependent crackles, and a ventricular gallop. As the patient's respirations become increasingly rapid and labored, he develops more diffuse crackles and a productive cough, worsening tachycardia and, possibly, arrhythmias. His skin becomes cold, clammy, and cyanotic; his blood pressure falls; and his pulse becomes thready.
Pulmonary embolism.
Pulmonary embolism is a life-threatening disorder that causes a cough that may be nonproductive or may produce blood-tinged sputum. Usually, the first symptom of a pulmonary embolism is severe dyspnea, which may be accompanied by angina or pleuritic chest pain. The patient experiences marked anxiety, a low-grade fever, tachycardia, tachypnea, and diaphoresis. Less-common signs include massive hemoptysis, chest splinting, leg edema and, with a large embolus, cyanosis, syncope, and jugular vein distention. The patient may also have a pleural friction rub, diffuse wheezing, crackles, chest dullness on percussion, decreased breath sounds, and signs of circulatory collapse.
Pulmonary tuberculosis (TB).
Pulmonary TB causes a mild to severe productive cough along with some combination of hemoptysis, malaise, dyspnea, and pleuritic chest pain. Sputum may be scant and mucoid or copious and purulent. Typically, the patient experiences night sweats, easy fatigability, and weight loss. His breath sounds are amphoric. He may have chest dullness on percussion and, after coughing, increased tactile fremitus with crackles.
Silicosis.
A productive cough with mucopurulent sputum is the earliest sign of silicosis. The patient also has exertional dyspnea, tachypnea, weight loss, fatigue, general weakness, and recurrent respiratory infections. Auscultation reveals end-inspiratory, fine crackles at the lung bases.
Tracheobronchitis.
Inflammation initially causes a nonproductive cough that later — following the onset of chills, a sore throat, a slight fever, muscle and back pain, and substernal tightness — becomes productive as secretions increase. Sputum is mucoid, mucopurulent, or purulent. The patient typically has rhonchi and wheezes; he may also develop crackles. Severe tracheobronchitis may cause a fever of 101° to 102° F (38.3° to 38.9° C) and bronchospasm.
Other causes
Diagnostic tests.
Bronchoscopy and pulmonary function tests (PFTs) may increase productive coughing.
Drugs.
Expectorants increase productive coughing. These include ammonium chloride, calcium iodide, guaifenesin, iodinated glycerol, potassium iodide, and terpin hydrate.
Respiratory therapy.
Intermittent positive-pressure breathing, nebulizer therapy, and incentive spirometry can help loosen secretions and cause or increase productive coughing.
Special considerations
Avoid taking measures to suppress a productive cough because retention of sputum may interfere with alveolar aeration or impair pulmonary resistance to infection. Expect to give a mucolytic and an expectorant, and increase the patient's intake of oral fluids to thin his secretions and increase their flow. In addition, you may give a bronchodilator to relieve bronchospasms and open airways. An antibiotic may be ordered to treat an underlying infection.
Humidify the air around the patient; this will relieve mucous membrane inflammation and also help loosen dried secretions. Provide pulmonary physiotherapy, such as postural drainage with vibration and percussion, to loosen secretions. Aerosol therapy may be necessary.
Provide the patient with uninterrupted rest periods. Keep him from using respiratory irritants. If he's confined to bed rest, change his position often to promote the drainage of secretions.
Prepare the patient for diagnostic tests, such as chest X-ray, bronchoscopy, a lung scan, and PFTs. Collect sputum samples for culture and sensitivity testing.
Pediatric pointers
Because his airway is narrow, a child with a productive cough can quickly develop airway occlusion and respiratory distress from thick or excessive secretions. Causes of a productive cough in a child include asthma, bronchiectasis, bronchitis, acute bronchiolitis, cystic fibrosis, and pertussis.
When caring for a child with a productive cough, administer expectorants, but don't expect to give a cough suppressant. To soothe inflamed mucous membranes and prevent drying of secretions, provide humidified air or oxygen. Remember, high humidity can induce bronchospasm in a hyperactive child or produce overhydration in an infant, and drinking milk can increase the viscosity of secretions.
Geriatric pointers
Always ask elderly patients about a productive cough because this sign may indicate a serious acute or chronic illness.
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Book Source Details
- Book Title: Handbook of Signs & Symptoms (Third Edition)
- Author(s): Springhouse
- Year of Publication: 2006
- Copyright Details: Handbook of Signs & Symptoms (Third Edition), Copyright © 2006 Lippincott Williams & Wilkins.
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Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.
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