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Biomedical subjects

H L Bleich

Publications and source records attributed to H L Bleich.

At least 55 records · Page 3Linked to original sources
PubMed1977

Collection of a clean voided urine specimen: a comparison among spoken, written, and computer-based instructions.

In an effort to compare different methods of instructing patients, 99 women 18-25 years of age were given computer, spoken, weitten, or no instructions for the collection of a clean voided urine specimen. The group who received computer instructions was the most uniform in its performance (P less than 0.002, F-test) and reported the fewest procedural problems (P less than 0.02, Fisher test). In addition, this group had fewer contaminating bacteria than the group who received written instructions (P less than 0.03 , Mann-Whitney test). The group who received no instructions had more bacteria (P less than 0.0001, Mann-Whitney test) than any of the other groups. The effectiveness of the computer instruction was probably related to numerous attributes, including the individualized quality of the dialogue, self-pacing, self-testing, and privacy.

Adolescent↗
PubMed1975

A computer program that evaluates patients with hypercalcemia.

A computer program has been developed to assist the physician in managing patients with hypercalcemia. The program requests appropriate information, such as the patient's serum calcium concentration, age and x-ray results. Based on the abnormalities detected, the program asks additional questions needed to suggest the most helpful course of action for evaluating or treating the patient's hypercalcemia. As soon as the data have been entered, the program generates an evaluation note that includes diagnostic possibilities, suggestions for additional laboratory studies, therapeutic recommendations and references to the medical literature. The program can be used from any general purpose teletype-compatible terminal (including cathode ray tube displays) connected to the Bell Telephone System. The time required to enter the data and obtain the evaluation note is approximately 4 minutes with a teletypewriter, and less if a faster terminal is used. The cost for computer time is comparable to that of a laboratory test. Comparison of diagnoses produced by the program with those obtained from pathologic examination of from consulting endocrinolgists shows that the program is sufficiently accurate for clinical use. Finnally, the explanation of the pathophysiology contained in the evaluation note may be useful to the student.

Adolescent↗
PubMed1969

Computer evaluation of acid-base disorders.

With the advent of electronic computers that operate in the time-sharing mode, it has become possible to develop an automated system that can assist a physician in solving clinical problems. In the present study a teletype terminal has been linked to a time-sharing computer which has been programmed to evaluate clinical and laboratory information concerning patients with acid-base disorders. The program checks the data for evidence of internal consistency and requests additional information as needed to solve the acid-base aspects of the clinical problem. If sufficient information is provided, the program generates an evaluation note designed to review with the physician the pathophysiology of the disorder and to assist him in its management. If the input data are incomplete, the program draws the most useful conclusions possible based on the data provided, specifies the limitations which pertain to these conclusions, suggests further studies designed to circumvent these limitations, and while awaiting the results, suggests appropriate interim therapeutic measures. The time required to enter a patient's data and to print the evaluation note is approximately 4 min; the cost is comparable to that of many laboratory tests.

Acid-Base Equilibrium↗