View clinical trials related to Blood.
Filter by:The study was conducted as a parallel group randomized controlled in order to determine the effects of dry heat and dry cold application before blood collection in school-aged children (7-12 years old) on pain, anxiety and fear levels. Participants were randomly assigned to experiment 1-dry hot application group, experiment 2-dry cold application group and control group. In Experiment 1-Dry Heat Application group, a dry heat of 42°C was applied to the determined area with an electrical heating pad for 5 minutes before blood sample was taken. In Experiment 2-Dry Cold Application group, dry cold was applied to the area determined with a gel pad for 3 minutes before blood sample was taken. In the Control group, blood sampling was performed according to the clinical routine, and no heat or cold application was made.
The aim of the present study is to quantify the time advantage achieved by the use of POCT compared to conventional coagulation diagnostics. A further objective of this study is an analysis of the result quality of POCT for the prothrombin time / international normalized ratio.
Background: - Formaldehyde has many uses in industry and medicine. However, exposure to formaldehyde has been associated with increased risk for myeloid leukemia. There are still questions about how the chemical reacts with bone marrow to increase this cancer risk. Some smaller studies have looked at how it affects stem cells, which are found in bone marrow. Researchers want to develop a much larger study of workers in China. The study will look at different levels of formaldehyde exposure. It will focus on how the chemical affects the blood cells and bone marrow. Objectives: - To study the effects of formaldehyde exposure on blood cells and bone marrow. Eligibility: - Individuals between 18 and 60 years of age who work in selected factories in Guangdong Province, China. Design: - Participants will be screened with a physical exam and medical history. They will also be screened with a work history. Those who have been exposed to benzene, butadiene, styrene, or radiation will not be included. - Participants will be studied based on their regular formaldehyde exposure level. One-third will be those exposed to more than 1 part per million (ppm) of the chemical. One-third will be those exposed to 0.3 to 1 ppm. A control group will have no exposure to formaldehyde or any other known toxic chemical. - Participants will provide blood and cheek swab samples. They will also answer questions about their work habits. - To look at chemical exposure levels, participants will wear a small monitor to work on 3 different days. They may provide additional blood and cell samples as directed. - No treatment will be provided as part of this study.