Literature Review and Critical Thinking Exercise Question Answer 2022

Running head: LITERATURE REVIEW
Literature review and Critical Thinking exercise
Student Name
University Name
Author Note

1Nursing
A randomised controlled trial of the effectiveness of soft silicone multi-layered foam
dressings in the prevention of sacral and heel pressure ulcers in trauma and critically ill
patients: the border trial (Quantitative Study)
1. What are the independent and dependant variables in the study? What are the
PICO components?
In the study, the dependant variables are length of stay of the patient, the
physiological variables like temperature, heart rate, MAP mmHg and ATS. The
independent variables in the study is observed to be admission classification to the
emergency department.
P – Patients admitted to the emergency department with major trauma and/or critical
illness of pressure ulcer
I – Mepilex Border Sacrum dressing to the sacrum and Mepilex Heel dressing to the
heel of the individual
C – Usual Intervention for pressure ulcer
O – Intervention group showed lesser length of stay in the hospital for proper
recuperation
2. Is this study experimental or non-experimental?
The following research study selected is an experimental study in which the variables
are manipulated by the author. Hence, in this study, the variables like length of stay,
mechanical ventilation and the way in which the patient is admitted in the hospital on
the grounds of critical illness or major trauma are all manipulated by the author
depending upon the type and duration of the intervention is given to the population.
The interventions were provided in a random manner which generated results that had
changed from the incidence rate which, in turn, showed that they had changed and
were manipulated by the author to understand their relationship.