N405 - Pathopharmacology III Study Guide Exam Questions Fully Answered.
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Course
N405
Institution
N405
Which of the following cellular changes occur with shock? SATA.
A) Cells are deprived of oxygen and nutrients, so they produce energy via aerobic metabolism
B) Cells are deprived of oxygen and nutrients, so they produce energy via anaerobic metabolism
C) Cells swell and cell membrane becomes per...
Cardiac tamponade and ventricular hypertrophy are considered [SYSTOLIC/DIASTOLIC] dysfunction and
can lead to cardiogenic shock. - Answer Diastolic
How does diastolic dysfunction cause cardiogenic shock? - Answer Ineffective filling causes backup of
fluid into lungs
Increased pulmonary pressures causes pulmonary edema and decreased oxygenation
Which structural abnormalities of the heart can cause cardiogenic shock? - Answer Valvular stenosis or
regurgitation
T/F: Cardiomyopathy can be a systolic OR diastolic cause of cardiogenic shock - Answer TRUE
MI, blunt cardiac injury and pulmonary HTN are considered [SYSTOLIC/DIASTOLIC] causes of cardiogenic
shock. - Answer Systolic
How does systolic dysfunction cause cardiogenic shock? - Answer Ineffective forward movement of
blood causes decreased SV and CO
T/F: myocarditis can cause cardiogenic shock - Answer TRUE
What is cardiogenic shock? - Answer When myocardial perfusion is compromised, a decrease in CO, SV,
and BP occur
Which of the following is NOT a manifestation of cardiogenic shock?
A) Tachycardia and hypotensiom
B) Tachypnea and crackles
,C) Widened pulse pressure
D) Increased SVR
E) Cool, clammy skin with pallor and diaphoresis - Answer C) Widened pulse pressure
Cardiogenic shock causes NARROWED pulse pressure
What is absolute hypovolemia in relation to hypovolemic shock? Give some examples. - Answer
Absolute is loss of volume of fluid from the body
Ex. hemorrhage, vomiting, diarrhea, diabetes, and dehydration
What is relative hypovolemia in relation to hypovolemic shock? Give 2 examples. - Answer Relative is
when fluid shifts from where it's supposed to be in the body to where it's not supposed to be. AKA third
spacing
Ex: burns, ascites
Neurogenic, anaphylactic and septic are all types of which shock? - Answer Distributive
What is neurogenic shock? - Answer -Massive vasodilation without compensation
-Leads to pooling of blood, tissue hypoperfusion and impaired metabolism
Which of the following are clinical manifestations of neurogenic shock? Select 3.
A) Pale, cool, clammy skin
B) Hypotension
C) Tachycardia
D) Inability to regulate body temperature
E) Decreased LOC - Answer B) Hypotension
C) Tachycardia
D) Inability to regulate body temperature
, A is cardiogenic and hypovolemic shock.
E is septic, anaphylactic and obstructive shocks
What occurs in the vasculature during anaphylactic shock? - Answer Massive vasodilation and release
of vasoactive mediators = increased capillary permeability
Results in fluid leakage from vascular space into interstitial space
Which of the following skin changes can occur with anaphylactic shock? SATA.
A) Flushing
B) Pruritus
C) Urticaria
D) Angioedema
E) Pallor - Answer A) Flushing
B) Pruritus
C) Urticaria
D) Angioedema
T/F: a pt in anaphylactic shock can be dizzy, have chest pain and/or become incontinent - Answer TRUE
What causes distributive shock? - Answer Physical obstruction to blood flow
Ex. cardiac tamponade, pneumothorax, PE
Where in the body does the initial stage of shock begin? List any manifestations or pertinent
information. - Answer -Occurs at cellular level
-Manifestations not clinically apparent
-Lactic acid buildup begins
What is the compensatory stage of shock? What will the pt's vitals look like? - Answer Clinical
presentation begins to reflect the body's responses
BP is STILL NORMAL but may decrease d/t decreased CO and narrowed pulse pressure
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