Sepsis Chapter 14 Flashcards
(30 cards)
What is sepsis?
life threatening organ dysfunction caused by a deregulated host response to infection
Is sepsis gram negative or positive?
Gram positive
Sepsis patho
Excessive release of proinflammatory cytokines that cause:
- Vasodilation = drop in BP
- Decreased vasomotor
- Increased capillary permeability
When does sepsis occur?
Local blood vessels dilate, increasing circulation to involved area, which allows for influx of immune cells, causing local redness, warmth, and edema. Sepsis occurs when inflammatory response is no longer localized
Early signs of sepsis
- Tachycardia
- Bounding pulses
- Fever
- Normal BP
- Tachypnea
Late signs of sepsis
- Cool, pale skin
- Weak thready pulses
- Tachycardia
- Hypotension
- ALOC
- Decreased RR
- Decreased urine output
Medical Management of sepsis
PREVENTATION!
- Hand washing
- Aseptic technique for procedures
Bundle of Care: Hour 1
Bundle = Activities that need to be completed within 1 hour after identifying sepsis
Labs what should be drawn during Bundle of Care
- **Immediately = serum lactate and two sets of blood cultures
- CBC
- coagulation studies
- LFT
- ABGs
- D0miner
Bundle of care and ABX
- Administered within 1 hour upon arrival
- Cultures should be done before antibiotics are administered
Bundle of care fluid resuscitation
Fluid with crystalloid solution = N.S or LR
What to use if fluid resuscitation does not successfully restore BP?
Initiation of vasopressors to keep MAP >65 mm Hg
What to give if pt is not responsive to fluid or vasopressor therapy? and what is it caused by?
Give low dose corticosteroid therapy due to Adrenal insufficiency
Ongoing monitoring during bundle of care
Ongoing monitoring = VS, perfusion, mental status, cultures again to check on tx, all lab work to check WBCs, lactic acid level coming down, hemodynamic monitoring, titrating drips, fluid levels, neuro checks
Complications of sepsis and how to treat each?
-DIC (vasodilating)
TX: crystalloids, blood, FFP, and PLTs
-MODS
TX: control infection, increase O2, restore/maintain intravascular volume
Nursing diagnosis for sepsis
Altered tissue perfusion r/t inadequate cardiac output
Nursing assessment: Neurological status
Decreased level of consciousness occurs as a result of decreased cardiac output and hyperventilation causing a decrease in cerebral blood flow.
Nursing assessment: VS
- Hypotension is present because of vasodilation, producing relative hypovolemia and decreased venous return.
- Tachycardia will be present as one of the compensatory mechanisms.
- Initially, the patient will be febrile as an adaptive response. In later stages, the patient will be hypothermic, potentially signaling the body’s inability to continue the adaptive response.
Nursing assessment: Hemodynamic readings
- Initially, cardiac output is increased; however, as sepsis progresses, cardiac output decreases as a result of continued decreases in filling pressures, such as CVP and pulmonary artery occlusion pressures.
- Initially, systemic vascular resistance is decreased as a result of widespread vasodilation. Later, it may increase due to compensation and vasopressor therapy.
Nursing assessment: Urine output
Decreased urine output occurs as a result of decreased cardiac output and the initiation of compensatory mechanisms.
Nursing assessment: skin color and temp
Initially, the patient’s skin is flushed and warm because of increased cardiac output. Later, the skin becomes cold and clammy, signaling the progression of shock. Tissue necrosis in the extremities may indicate the enhanced coagulation of DIC
Nursing assessment: Bleeding
Excessive bleeding from wounds and puncture sites may be present because of consumption of clotting factors in DIC.
Lab test: ABGs
Initial ABGs may reflect a respiratory alkalosis due to hyperventilation. Hypercapnia and hypoxia are present as respiratory failure worsens. Later stages of shock reveal a metabolic acidosis due to anaerobic metabolism.
Lab test: Venous O2 sat
Decreased SvO2 and ScvO2 are typically indicators of inadequate oxygen delivery. In later sepsis, values may be elevated because of maldistribution of blood flow and are not indicative of recovery.