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L S Lamb

Publications and source records attributed to L S Lamb.

23 records · Page 2Linked to original sources

Colorectal cancer in animal models--a review.

Colorectal cancer remains the second leading cause of cancer death in the western hemisphere. During the past several decades information regarding epidemiology, etiology and associated factors regarding colo-rectal cancer in humans has been collected through study of experimental colonic tumors in animal models. Much of this work has been influenced by the use of 1,2-dimethylhydrazine as the inducing carcinogen in susceptible populations of animals, although other specific carcinogens have been used. Through application of this experimental model, knowledge of dietary, immunologic, and bacterial factors has been realized in the etiology of colo-rectal cancer. This review details methodology and results of developing experimental models as they pertain to human colo-rectal cancer.

1,2-Dimethylhydrazine↗

Patient understanding of a teaching manual on cardiac catheterization.

A representative sample of 30 patients completed the study. Statistical analysis was such that five of six hypotheses were supported. The sixth hypothesis was not tested because of decreased sample size. Statistical analysis supported the conclusion that, in this particular study, patients learned from the teaching materials regardless of age, education, or time under a physician's care for the cardiac disorder. One of the major limitations of this study was the inability to test for an increase in patient knowledge without the use of the manual. A suggestion for further research could be the conduct of a comparison study between pretest and posttest scores of patients who used the manual and those who received the hospital's routine precatheterization care. The implications for nursing in this study were addressed at length in the introduction and review of the literature. The major advantage of a usable teaching manual is its efficiency in teaching a large number of patients in a shorter period of time. Print decreases time requirements and is more efficient than oral language, except for those who have difficulty reading. The reader can control the speed at which the material is read and comprehended. It is important to remember, however, that although written materials are helpful in patient teaching, they are not a substitute for patient-nurse contact. According to Redman , the materials do not in and of themselves allow patient responses or consider the patient's subjective feelings regarding the procedure. They do provide standardized information, an important aid that serves to increase the efficiency of the staff nurse in patient care and teaching. The researcher concedes that further investigation is necessary to provide adequate validity and reliability of the materials. Tested teaching materials in the hands of concerned health professionals can produce a more knowledgeable and cooperative patient and improve staff efficiency.

Adult↗

Maximal rate response in a permanent pacemaker during chest physiotherapy.

Rate-responsive pacing is designed to allow a near-physiologic heart rate response to patient activity. One means of generating the desired response has been achieved with the use of pacemakers that respond to vibration generated by skeletal muscle activity. In this article, we report a case of increased paced rate in an activity-sensing rate-responsive pacemaker caused by the sensing of skeletal muscle vibration during chest physiotherapy. Potential clinical complications and possible solutions to this problem, as well as significant aspects of nursing care, are discussed with respect to patients with rate-responsive pacing devices.

Aged↗