Chapter 29 | Bleeding and Shock Flashcards
• Signs, symptoms, and care of a patient with shock • Recognizing hemorrhage • How to evaluate the severity of external bleeding • How to control external bleeding • Signs, symptoms, and care of a patient with internal bleeding
Define:
shock
body’s inability to circulate blood adequately to the body’s cells to supply them with oxygen and nutrients
aka hypoperfusion (oh and it’s life-threatening)
Define:
capillaries
any of the fine branching blood vessels that form a network between the arterioles and venules
List:
functions of blood
5 points
- transportation of gasses: does the air-liquid dance at the alveoli and stuff
- nutrition: transportation of nutrients from digestive system (like glucose)
- excretion: removing waste from cells (like CO₂)
- protection: protecting against pathogens and clotting
- regulation: hormones/enzymes/chemicals carried in blood to control body functions
Define:
hemorrhage
bleeding
(especially severe bleeding)
Define:
hypoperfusion
(physiological term)
inability of the body to adequately circulate blood to the body’s cells to supply them with oxygen and nutrients
literally synonymous with shock
Define:
hypovolemic shock
hypoperfusion caused by low blood/fluid volume
Define:
distributive shock
hypoperfusion caused by low blood vessel tone
Define:
cardiogenic shock
hypoperfusion caused by failure of heart to pump blood
Define:
obstructive shock
hypoperfusion caused by inability of blood to flow
Define:
hemorrhagic shock
hypoperfusion caused by uncontrolled bleeding
the patient is hemorrhaging (bleeding dumbass)
Define:
neurogenic shock
hypoperfusion caused by spinal cord injury that results in systemic vasodilation
List:
pathophysiologies of shock
4 points
- volume problems: hypovolemia/hemorrhage
- pump problems: cardiogenic shock
- blood vessel tone problems: distributive shock
- obstruction of blood to flow: obstructive shock
List:
signs/symptoms of compensated shock
5 points
- slight mental status changes (AMS)
- increased HR
- increased RR
- pale/cool/diaphoretic skin
- delayed capillary refill time
(compensation usually includes normal BP)
List:
body’s means of responding to shock
3 points (how does it compensate)
- regulation of volume: kidneys retain fluid and excretion is reduced
- vasoconstriction: (most useful method) narrowing blood vessels to try to increase BP
- cardiopulmonary response: epinephrine/norepinephrine released to speed up heart
Define:
decompensated shock
period when body can no longer compensate for hypoperfusion
(late signs like decreasing BP become evident)
List:
signs/symptoms of decompensated shock
3 points
- low BP
- weak/thready pulse (with abnormal rate)
- cool, pale, diaphoretic skin
Define:
irreversible shock
hypoperfusion to the point of failure of organ systems
Fill in the blank:
Irreversible shock is called irreversible because [BLANK].
Irreversible shock is called irreversible because at this point, even if the patient survives, the underlying problem of organ damage is likely uncorrectable.
Describe:
key interventions for hypovolemic shock
2 points
bleeding control and rapid transport
Describe:
key intervention for cardiogenic shock
(Dude is in cardiogenic shock. What do you do? Go.)
request ALS because certain meds/interventions to support BP may be critical
Describe:
key intervention for anaphylactic distributive shock
epinephrine administration
Describe:
key intervention for septic distributive shock
2 points
sepsis alert (to notify receiving facility) and rapid transport
(very time sensitive)
Explain:
ways to recognize arterial bleeding
3 points
- bright red color
- often spurting
- profuse bleeding (and difficult to control)
List:
ways to identify veinous bleeding
3 points
- dark red or maroon color
- steady flow
- easier to control