Nursing handover notes were used to identify and track patients undergoing any dietary restriction and all of these patients were included in the data collection. The restrictions were nil by mouth, sips only, clear fluids only or free fluids only. Whether patients were referred to Dietetic services was also recorded. The ward was visited 4 days every week to confirm the accuracy of nursing handover notes from nursing staff and doctors. MUST scores were noted and compared to incidents of referrals to a dietitian. All data were anonymised at the end of the collection period. Frequency data were used and mean (SD) values for duration of restricted diets calculated. Results: Eighty-three patients had completed periods of dietary restrictions (i.e. beginning and end date) with 24 of those patients undergoing two or more different types of dietary restriction.
1. Basal and stimulated platelet intracellular free calcium concentrations were measured in non-pregnant women and in third trimester patients who were either normotensive or who had pregnancy-induced hypertension or pre-eclampsia. There were 15 subjects in each group. 2. A trend for a reduction of the maximal response of platelet calcium levels to stimulation by 5-hydroxytryptamine was seen in pregnant groups compared with nonpregnant subjects, but this was significant only in pre-eclampsia. 3. No significant differences in basal or adenosine 5'-pyrophosphate-stimulated levels of platelet intracellular free calcium concentration were observed between the four groups. 4. These results illustrate that basal platelet calcium levels are unchanged in hypertension of pregnancy. Alterations in basal platelet calcium levels may not be involved in the platelet activation that is a feature of pre-eclampsia.
The effect of 0.8 g kg‐1 absolute ethanol orally on platelet intracellular free calcium was assessed in a random order study in 24 normotensive subjects with an isocaloric control. Platelet calcium was measured 90 min and 12 h after treatment by the Quin 2 method. The study had 90% power of detecting a 16.5% change. After 90 min, breath ethanol was 37 +/‐ 9 micrograms 100 ml‐1, blood pressure was unchanged and heart rate rose slightly. Platelet calcium was unchanged by ethanol after 90 min or 12 h.
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