Abstract：
:Use of performance-enhancing supplements occurs at all levels of sports, from professional athletes to junior high school students. Although some supplements do enhance athletic performance, many have no proven benefits and have serious adverse effects. Anabolic steroids and ephedrine have life-threatening adverse effects and are prohibited by the International Olympic Committee and the National Collegiate Athletic Association for use in competition. Blood transfusions, androstenedione, and dehydroepiandrosterone are also prohibited in competition. Caffeine, creatine, and sodium bicarbonate have been shown to enhance performance in certain contexts and have few adverse effects. No performance benefit has been shown with amino acids, beta-hydroxy-beta-methylbutyrate, chromium, human growth hormone, and iron. Carbohydrate-electrolyte beverages have no serious adverse effects and can aid performance when used for fluid replacement. Given the widespread use of performance-enhancing supplements, physicians should be prepared to counsel athletes of all ages about their effectiveness, safety, and legality.
journal_name
Am Fam Physicianjournal_title
American family physicianauthors
Jenkinson DM,Harbert AJsubject
Has Abstractpub_date
2008-11-01 00:00:00pages
1039-46issue
9eissn
0002-838Xissn
1532-0650journal_volume
78pub_type
杂志文章,评审abstract：:This is a minimally invasive imaging technique designed to evaluate patients for suspected coronary artery disease. It is usually performed in conjunction with stress ECG testing. It can accurately determine the presence and extent of coronary artery disease and help determine whether cardiac catheterization is necess...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1984-04-01 00:00:00
abstract：:Sarcoidosis is a systemic granulomatous disease of unknown cause affecting young and middle-aged adults. Patients commonly present with bilateral hilar lymphadenopathy, pulmonary infiltrates, and ocular and skin lesions. The heart, liver,spleen, salivary glands, muscles,bones, kidneys, and central nervous system also ...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：2004-07-15 00:00:00
abstract：:Amputated or devascularized digits should be appropriately cooled as quickly as possible. The injured extremity is dressed, splinted and elevated. Careful selection of patients for replantation has yielded satisfying results to both patients and surgeons. Replantation is indicated for a thumb or multiple-digit amputat...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1981-07-01 00:00:00
abstract：:More than 30% of U.S. adults report having experienced low back pain within the preceding three months. Although most low back pain is nonspecific and self-limiting, a subset of patients develop chronic low back pain, defined as persistent symptoms for longer than three months. Low back pain is categorized as nonspeci...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：2015-05-15 00:00:00
abstract：:An estimated 15% of children in the United States have at least one developmental delay, yet less than one-fifth of those children receive early intervention services before three years of age. Many barriers exist to implementing initial screening and referral, but screening tools can be easily incorporated into the w...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：2017-07-01 00:00:00
abstract：:Physicians can create their own personal formulary by rigorously selecting and regularly using one or two drugs for each clinical condition they commonly encounter. The primary and secondary medical literature provides the necessary information to create this formulary. Primary literature sources include peer-reviewed...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1996-06-01 00:00:00
abstract：:Analgesic and sedative needs depend on the type of procedure, the child's age and the degree of cooperation from the child and parents. Local anesthesia, which may be administered subcutaneously or in topical gel form, generally is sufficient for common procedures such as lumbar puncture and laceration repair. Frequen...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1997-02-15 00:00:00
abstract：:The physical examination requires careful palpation of pulses and measurement of blood pressure, evaluation of heart sounds (including detection of the third heart sound) and appreciation of clicks and murmurs. Combined with the chest x-ray and electrocardiographic findings, these steps usually lead to the most common...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1985-04-01 00:00:00
abstract：:A case of bilateral compression femoral neuropathy due to iliopsoas muscle hematomas during anticoagulant therapy is described. Diagnosis was confirmed with computed tomographic scan. The right hematoma was larger than the left and caused a more severe femoral neuropathy. The hematoma on the right side was surgically ...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1991-12-01 00:00:00
abstract：:Persons with mental retardation sometimes exhibit behaviors that are difficult to control. Use of neuroleptic medications may be limited by side effects or ineffectiveness. Beta blockers such as propranolol and metoprolol have been shown to decrease aggressive and impulsive behaviors in some patients with mental retar...
journal_title：American family physician
pub_type： 指南,杂志文章,评审
doi：
更新日期：1990-12-01 00:00:00
abstract：:Because of the increasing popularity of recreational scuba diving, primary care physicians should be familiar with common diving injuries. One form of barotrauma, middle ear squeeze, is the most common diving injury. Other important diving injuries include inner ear barotrauma and pulmonary barotrauma. Arterial gas em...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1996-04-01 00:00:00
abstract：:Hepatitis B causes significant morbidity and mortality worldwide. More than 400 million persons, including 1.25 million Americans, have chronic hepatitis B. In the United States, chronic hepatitis B virus infection is responsible for about 5,000 annual deaths from cirrhosis and hepatocellular carcinoma. Hepatitis B vi...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：2004-01-01 00:00:00
abstract：:Patients with variceal or other gastrointestinal hemorrhage require aggressive resuscitative measures and early diagnosis for optimal therapy. A number of nonsurgical endoscopic modalities, such as laser therapy, sclerotherapy, heater probe and electrocoagulation (monopolar or bipolar), are available to arrest and som...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1986-10-01 00:00:00
abstract：:The preparticipation physical evaluation is a commonly requested medical visit for amateur and professional athletes of all ages. The overarching goal is to maximize the health of athletes and their safe participation in sports. Although studies have not found that the preparticipation physical evaluation prevents mor...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：2015-09-01 00:00:00
abstract：:Zidovudine is now used extensively in an effort to control infection with the human immunodeficiency virus (HIV). The drug is associated with major hematologic toxicity, especially anemia and granulocytopenia. Conservative management of hematologic toxicity includes dosage reduction or cessation of therapy, diagnosis ...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
abstract：:While abdominoperineal resection with permanent colostomy is still required for most distal [corrected] rectal cancers, sphincter-saving local treatment by means of local excision, electrocoagulation or endocavitary contact radiation can be used for some highly selected distal tumors. Local treatment avoids a permanen...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1997-10-15 00:00:00
abstract：:Menière's disease may be the underlying cause of dizziness, which is a common presenting complaint. This disease is differentiated from other causes of dizziness by its classic constellation of four symptoms; dizziness characterized as episodic spinning or whirling vertigo; fluctuating, low-frequency sensorineural hea...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1997-03-01 00:00:00
abstract：:Atrial fibrillation is a supraventricular arrhythmia that adversely affects cardiac function and increases the risk of stroke. It is the most common arrhythmia and a major source of morbidity and mortality; its prevalence increases with age. Pulse rate is sensitive, but not specific, for diagnosis, and suspected atria...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：2016-09-15 00:00:00
abstract：:Cytochrome P450 enzymes are essential for the metabolism of many medications. Although this class has more than 50 enzymes, six of them metabolize 90 percent of drugs, with the two most significant enzymes being CYP3A4 and CYP2D6. Genetic variability (polymorphism) in these enzymes may influence a patient's response t...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：2007-08-01 00:00:00
abstract：:The acute and chronic effects of alcohol on bone, muscle and peripheral nerves are not well appreciated. Bone complications include traumatic fractures, osteoporosis and osteonecrosis. In muscle, a sustained bout of heavy drinking may cause rhabdomyolysis, while chronic alcohol abuse may produce proximal myopathy. In ...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1986-11-01 00:00:00
abstract：:The incidence of syphilis is increasing, predominantly among urban heterosexuals. Early recognition is important in preventing progression of the disease and transmission of Treponema pallidum to the fetus. Untreated primary syphilis is characterized by intervals of active disease punctuated by periods of latency. Not...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1994-10-01 00:00:00
abstract：:Zidovudine, the first widely used antiretroviral agent, prevents replication of the human immunodeficiency virus (HIV) by inhibiting reverse transcriptase. Its use in patients with acquired immunodeficiency syndrome slows progression of the disease and prolongs survival. Zidovudine also significantly reduces the rate ...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1990-08-01 00:00:00
abstract：:Finger fractures and dislocations are common injuries that are often managed by family physicians. A systematic physical examination is imperative to avoid complications and poor outcomes following these injuries. Radiography (commonly anteroposterior, true lateral, and oblique views) is required in the evaluation of ...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：2012-04-15 00:00:00
abstract：:Postpartum hemorrhage, the loss of more than 500 mL of blood after delivery, occurs in up to 18 percent of births and is the most common maternal morbidity in developed countries. Although risk factors and preventive strategies are dearly documented, not all cases are expected or avoidable. Uterine atony is responsibl...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：2007-03-15 00:00:00
abstract：:Serotonin syndrome is a potentially life-threatening complication of psychopharmacologic drug therapy. The syndrome is produced most often by the concurrent use of two or more drugs that increase brainstem serotonin activity and is often unrecognized because of the varied and nonspecific nature of its symptomatology. ...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1995-10-01 00:00:00
abstract：:Acute diarrhea in adults is a common problem encountered by family physicians. The most common etiology is viral gastroenteritis, a self-limited disease. Increases in travel, comorbidities, and foodborne illness lead to more bacteria-related cases of acute diarrhea. A history and physical examination evaluating for ri...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：2014-02-01 00:00:00
abstract：:Although testicular cancer accounts for only 1 percent of all tumors in males, it is the most common malignancy in males between 15 and 34 years of age. Cryptorchidism is the most significant risk factor for testicular cancer, increasing the risk up to 11-fold. A painless testicular mass is the classic presentation fo...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：1999-05-01 00:00:00
abstract：:Melanoma is an increasingly common malignancy, and it affects a younger population than most cancers. Risk factors for melanoma include white race, sun sensitivity, family history of melanoma, and melanocytic nevi. Sunburn and intermittent sun exposure appear to increase the risk of developing melanoma. The role of po...
journal_title：American family physician
pub_type： 杂志文章,评审
doi：
更新日期：2005-07-15 00:00:00
abstract：:Every year in the United States, at least 250,000 deaths are attributed to lack of physical activity. Because of the health benefits of physical activity, national guidelines recommend participation in 30 minutes of accumulated moderate-intensity physical activity such as walking fast on five or more days of the week....
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：2008-04-15 00:00:00
abstract：:Growth hormone from human pituitary glands has been available for 30 years. Because of the scarce supply and the danger of transmitting Creutzfeldt-Jakob disease, use of the hormone was discontinued in 1984. Fortunately, synthetic growth hormone produced with recombinant DNA technology became available in 1985 and eli...
journal_title：American family physician
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
