Flashcards in Practice Questions: Shock Fernandez (MC) Deck (17):
Which is true during anaerobic metabolism…a. 36 mmol of ATP are producedb. oxygen is the electron acceptor c. pyruvate is reduced to lactated. increased lactate leads to a metabolic alkalosis
c. pyruvate is reduced to lactate
An elevated blood lactate correlates with? a. Increased perfusion of the tissuesb. Decreased perfusion of the tissuesc. Increased aerobic metabolismd. Decreased anaerobic metabolism
b. decreased perfusion of the tissues
Which of the following is true regarding shock?a. It is a syndrome characterized by severe clinical signsb. Shock is always irreversible regardless of the causec. It is circulatory failure to supply oxygen and nutrients to meet metabolic and cellular demandsd. All of the Abovee. A and C
e. A and Cshockis a syndrome characterized by severe clinical signsit is circulatory failure to supply O2 and nutrients to meet metabolic and cellular demands
Which of the following can lead to shock?a. Increased cardiac pumping efficiencyb. Increased effective circulating volumec. Alterations in vascular toned. Increased oxygen carrying capacity of blood
c. alterations in vascular tone
True/False: Patients can only suffer from one type of shock at a time.
7. Which is false regarding Hypovolemic shock?a. Results from decreased circulating volumeb. Relates to a decrease in the intracellular fluid volumec. Results in decreased tissue perfusiond. Can be due to hemorrhage
b. relates to a decrease in the intracellular fluid volume
8. Which of the following is a compensatory mechanism in order to increase blood volume?a. Tachycardia in order to increase COb. Vasodilation in order to allow more space for the bloodc. Increased stroke volume in order to increase COd. Bradycardia in order to conserve the heart
a. tachycardia in order to increase CO
9. Why could blood pressure initially be normal in a shock patient?a. The blood pressure machine cannot detect a decrease in BPb. Compensatory mechanisms such as tachycardia, RAAS, and increase in sympathetic tone are hard at workc. It takes at least 24 hours for shock patients to become clinicald. Blood pressure should always be normal even if the patient is in decompensated shock.
b. compensatory mechanisms.......
10. The shock organ in the cat is _______ while that of the dog is ________.a. GIT, liverb. Spleen, GITc. Liver, GITd. Liver, kidney
c. Liver for cat and GIT for dog
11. Which of the following is a cause of distributive shock?a. Hemorrhageb. Severe vomiting and diarrheac. Anaphylaxisd. Cardiac arrhythmias
12. Which of the following is not a cause of cardiogenic shock?a. Drugsb. Congestive Heart Failurec. Thromboembolismd. Cardiac tamponade
13. Which of the following is true regarding the pathophysiology of cardiogenic shock?a. Ventricular volume and CVP are lowb. Too much blood is entering the heart and therefore too much blood is also leaving the heartc. Fluid is not there to be pushed outd. Cardiac Output is reduced which leads to decreased tissue perfusion
d. CO is reduced leading to decreased tissue perfusion
14. True/False. Shock always leads to increased vascular tone (constriction).
15. True/False. SVR can be either increased or decreased depending on the type of shock.
16. What are the 3 main categories of shock?
a. Hypovolemicb. Distributive (obstructive)c. Cardiogenic
17. What are the perfusion parameters?
a. Mentation-dull, obtunded, depressed. BRAIN NEEDS OXYGEN!b. Mucous Membranes- pale due to decreased perfusionc. Capillary Refill Time-sluggish. Periphery not being perfused in order to perfuse essential tissuesd. Pulse Quality-poor. Not enough SV to fill the vessels.e. Extremity Temperature-Cool extremities due to vasoconstriction of peripheral vessels in order to perfuse essential tissues.f. Heart Rate-Tachycardic bc decreased SV and need to increase CO.