Kirby’s Rule Of 20 Flashcards
Define obtunded.
Slow or inappropriate response to sensory stimuli.
Define stuporous.
Unconscious but rousable to noxious stimuli.
Define delirium.
Reduced state of consciousness with profound disorientation.
Define comatose.
Unconscious and unresponsive.
What are the six perfusion parameters used to determine cardiac performance?
Mentation, heart rate, pulse rate, mucus membrane color, capillary refill time, and extremity temperature.
What is the difference between systolic and diastolic pressure?
Systolic is the pressure during contraction of the heart muscle and diastolic signifies the pressure when the heart muscle is between beats
What are the three general causes of hypotension?
Reduction in preload, reduction in cardiac function, and reduction in systemic vascular resistance.
What are the two phases of coagulation?
Primary and secondary.
Where does primary hemostasis occur?
At the site of tissue injury, when von Willebrand factor binds to collagen and platelets to form platelet aggregation and clots.
When does secondary hemostasis occur?
Secondary hemostasis follows primary and involves coagulation factors interacting through a mutual sequential activation of the intrinsic and extrinsic pathways.
What percentage of cardiac output is dedicated to helping kidneys maintain arterial blood pressure?
20 to 25%.
Define pre-renal azotemia.
Pre-renal is caused by non-renal physiological or hemodynamic factors in which renal perfusion is compromised affecting blood flow and causing ischemic injury.
Define intrinsic renal azotemia.
Intrinsic renal refers to direct damage to the renal parenchyma.
Define post-renal azotemia.
Post renal refers to an obstruction or impediment in the outflow of urine that prevents urine from being eliminated from the body.
What is an important but often discounted aspect of critical care that is also necessary for recovery from all disease processes?
Nutrition.