Publications by authors named "Joan MacKenzie"

Unlabelled: Severe sepsis requires timely, resource-intensive resuscitation, a challenge when a sepsis diagnosis is not confirmed. The overall goals were to create a pediatric sepsis program that provided high-quality critical care in severe sepsis (Sepsis Stat), and, in possible sepsis, flexible evaluation and treatment that promoted stewardship (Sepsis Yellow). The primary aims were to decrease time to antibiotics and the intensive care unit requirement.

View Article and Find Full Text PDF

Until recently, intact protein that is rich in tryptophan was not seen as an alternative to pharmaceutical-grade tryptophan because protein also contains large neutral amino acids (LNAAs) that compete for transport sites across the blood-brain barrier. Recent evidence indicates that when deoiled gourd seed (a rich source of tryptophan with approximately 22 mg/g protein) is combined with glucose (a carbohydrate that reduces serum levels of competing LNAAs) a clinical effect similar to that of pharmaceutical-grade tryptophan is achieved. Objective and subjective measures of anxiety in those suffering from social phobia (also known as social anxiety disorder) were employed to measure changes in anxiety in response to a stimulus as part of a double-blind, placebo-controlled, crossover study with a wash-out period of 1 week between study sessions.

View Article and Find Full Text PDF

Objective: to conduct a randomised-controlled trial to investigate the effectiveness of two heel-prick devices (Tenderfoot and Genie Lancet) used in the newborn-baby screening test.

Design: a randomised-controlled trial.

Participants And Setting: the homes of 340 healthy term newborn babies discharged from the maternity unit of Stirling Royal Infirmary, Scotland.

View Article and Find Full Text PDF

Pediatric diabetic ketoacidosis is a life-threatening medical condition that requires rapid recognition yet gradual organized treatment. This article discusses the pathophysiology and morbidity of diabetic ketoacidosis and cerebral edema, in addition to treatment and nursing considerations. Three case studies are presented to reintroduce the reader to varying severity of ketoacidosis.

View Article and Find Full Text PDF

Background: Intact protein rich in tryptophan was not seen as an alternative to pharmaceutical grade tryptophan since protein also contains large neutral amino acids (LNAAs) that compete for transport sites across the blood-brain barrier (BBB). Deoiled gourd seed (an extremely rich source of tryptophan-22 mg tryptophan/1 g protein) was combined with glucose, a carbohydrate that reduces serum levels of competing LNAAs which was then compared to pharmaceutical grade tryptophan with carbohydrate as well as carbohydrate alone.

Method: Objective and subjective measures of sleep were employed to measure changes in sleep as part of a double blind placebo controlled study where subjects were randomly assigned to one of three conditions: (1) Protein source tryptophan (deoiled gourd seed) in combination with carbohydrate; (2) pharmaceutical grade tryptophan in combination with carbohydrate; (3) carbohydrate alone.

View Article and Find Full Text PDF