Clinical Utility of the Meal Tolerance Test in the Care of Patients with Type 2 Diabetes Mellitus.

Objective The measurement of C-peptide immunoreactivity (CPR) is essential for evaluating the pancreatic ß-cell function and selecting appropriate therapeutic agents in patients with diabetes mellitus. The meal tolerance test (MTT) is simple to administer physiological insulin-stimulating test. Previous studies have reported that several CPR-related indices are useful markers for predicting insulin requirement in type 2 diabetes. In the present study, we investigated the serum CPR response during the MTT in hospitalized patients with type 2 diabetes mellitus in order to clarify the clinical utility of the MTT. Methods We performed the MTT using a test meal with timed measurements of the serum CPR level based on the oral glucose tolerance test over 180 minutes and tested the correlation of various CPR-related indices and clinical factors in patients with type 2 diabetes mellitus. Patients The subjects were patients with type 2 diabetes mellitus who had been admitted to our hospital for diabetes management and education. The final study population consisted of 68 patients. Results The fasting CPR level was correlated with the 24-hour urinary CPR excretion and body mass index. The serum CPR level at 120 minutes in the MTT was strongly correlated with the area under the curve of CPR during the MTT. The patients who needed insulin therapy at 6 months after hospitalization showed a significant lower incremental CPR value from 0 to 120 minutes in the MTT than those who did not need insulin therapy. Conclusion The plasma C-peptide levels at 0 and 120 minutes in the MTT provide essential information for the clinical management of patients with type 2 diabetes mellitus.

[Individualized inhalation instruction using check sheets by a pharmacist in community pharmacy improves inhalation techniques in asthmatic patients].

BACKGROUND: Many types of inhaled medications are used for the treatment of asthma; however, inadequate inhalation techniques and poor adherence cause exacerbations of asthma symptoms. It is necessary to therefore provide adequate instruction to acquire correct inhalation techniques. This study aimed to evaluate the usefulness of individualized inhalation instruction in asthmatic outpatients by a community pharmacist for an improvement of the inhalation techniques and asthma control. METHODS: Twenty-eight asthmatic outpatients who have developed asthma over a long period and received prescriptions from Kumamoto Chuo Hospital from April to August 2008 were instructed by a pharmacist on inhalation techniques at Shimokawa Hamasen Pharmacy. Individual instruction by the pharmacist consisted of a skill-check with inhalers, followed by the use of a checklist of inhalation technique, a self-evaluation checklist, and visual information for the patients. Outcomes were evaluated based on changes in inhalation technique mastery between their first visit and the subsequent visit. Nineteen of the 28 patients who completed the Asthma Control Test (ACT) were also evaluated for asthma control according to changes in their ACT scores. RESULTS: Twenty patients showed inadequate inhalation techniques. The individualized instruction resulted in significant improvement in the inhalation techniques. Moreover, there were significant improvement in the ACT scores (from 19.1 to 21.4) of 19 patients who received the individualized instruction. CONCLUSION: The individualized instruction to the asthmatic outpatients enables them to improve the inhalation techniques to mend their asthmatic symptoms. We suggest that coordination with hospital and community pharmacy improves therapeutic outcomes in inhaled medication for the asthmatic outpatients.