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OBJECTIVE: The In-Training Examination in Internal Medicine (ITE-IM) has been offered to internal medicine trainees annually since 1988 as an instrument for self-assessment. This report outlines the manner in which the test is prepared, reviews the results of annual examinations, and analyzes trends during the past 6 years. DESIGN: Results of each examination were reviewed with regard to the demographic characteristics of persons taking the test, their previous medical training, and their present program affiliations. RESULTS: Then number of residents participating in the ITE-IM has increased steadily over the past 6 years. In 1993, more than 12,000 residents from more than 90% of internal medicine training programs in the United States participated in the examination; the percentage of international medical school graduates taking the examination increased from 27% in 1988 to 47% in 1993. Statistical analyses of each examination have shown it to be reliable, internally consistent, and discriminating. Over the past 6 years, graduates of U.S. medical schools have scored consistently higher than those of international medical schools and schools of osteopathic medicine on all annual examinations. However, in 1993, for residents at all levels of training, the differences in scores between graduates of U.S. medical schools and graduates of international medical schools narrowed substantially. From 1988 to 1993, there has been a trend toward lower scores by every cohort on each subsequent examination. The decreases in scores are most pronounced for graduates of U.S. medical school and those of schools of osteopathic medicine. The lower scores may be caused by either an increased level of difficulty in the examination or decreased knowledge among examinees. CONCLUSIONS: The ITE-IM is a useful instrument to assess the knowledge base of residents and program directors with a reliable evaluation of themselves and their programs in comparison to their national peer groups. It also provides objective data to monitor trends over time in residents' scores and relates them to the changing demographic characteristics of trainees and to innovations in the clinical curricula of internal medicine training programs.

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OBJECTIVE: To study the design, method of implementation, perceived benefits, and problems associated with a night float system. DESIGN: Self-administered questionnaire completed by program directors, which included both structured and open-ended questions. The answers reflect resident and student opinions as well as those of the program directors, since program directors regularly obtain feedback from these groups. SETTING/PARTICIPANTS: The 442 accredited internal medicine residency programs listed in the 1988-89 Directory of Graduate Medical Education Programs. RESULTS: Of the 442 programs, 79% responded, and 30% had experience with a night float system. The most frequent methods for initiating a night float system included: decreasing elective time (42.3%), hiring more residents (26.9%), creating a non-teaching service (12.5%), and reallocating housestaff time (9.6%). Positive effects cited include decreased fatigue, improved housestaff morale, improved recruiting, and better attitude toward internal medicine training. The quality of medical care was considered the same or better by most programs using it. The most commonly cited problems were decreased continuity of care, inadequate teaching of the night float team, and miscommunication. CONCLUSION: Residency programs using a night float system usually observe a positive effect on housestaff morale, recruitment, and working hours and no detrimental effect on the quality of patient care. Miscommunication and inadequate learning experience for the night float team are important potential problems. This survey suggests that the night float represents one solution to reducing resident working hours.

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Because sleep is known to reduce ventilatory drive, and sleep deprivation is a common accompaniment to ventilatory failure, we tested ventilatory response to carbon dioxide (delta V1/delta PCO2) and response to an inspiratory flow resistive load (change in delta P100/delta PCO2 with load) after both a normal night of sleep and after 24 hours of sleep deprivation in 13 healthy volunteers. Sleep deprivation was associated with a significant decrease in delta V1/delta PCO2 from 2.51 +/- .36 to 2.09 +/- .34 L/min/mm Hg (p less than 0.02). However, load compensation was preserved during sleep deprivation. Since many acutely-ill patients are sleep deprived, an associated reduction of ventilatory drive may play a role in progressive respiratory insufficiency.

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A patient is described with pulmonary hypertension complicating rheumatoid arthritis. Anticentromere antibody, a test of high specificity for the CREST syndrome, was present in the serum. Confirmation of this observation may lead to an improved classification of "primary" pulmonary hypertension.

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Data on nutrient intakes and blood vitamin levels were obtained for twenty-nine pregnant adolescents attending a special school for pregnant school-age girls in New Brunswick, New Jersey. Except for calcium and iron, mean intakes were equal to or greater than the Recommended Dietary Allowances. Food eaten at school contributed 35 to 43% of the total nutrient intake. Mean blood vitamin levels were normal to high, although about a fourth of the girls had low levels of vitamin B6 and folate. All except one delivered normal, full-term infants. It was concluded that attendance at such a special school contributes to normal pregnancy outcome among teen-age mothers.

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