Mcq_mini3 Integrated Control Of CVS, Cardiovascular Drugs

28 Questions | Total Attempts: 115

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Cardiovascular Drug Quizzes & Trivia

Questions and Answers
  • 1. 
    Which of the following would occur in a healthy person during the act of changing body position from supine to standing when the baroreceptor reflex is activated? Baroreceptor Firing                          Activation of NTS                                 Heart Rate
    • A. 

      Increase increase increase

    • B. 

      Increase decrease increase

    • C. 

      Decrease increase increase

    • D. 

      Decrease decrease increase

    • E. 

      Decrease decrease decrease

  • 2. 
    A patient experiences a hemorrhage that lasts for 30 minutes. At the end of that time, the mean arterial pressure has dropped from 90 to 75 mmHg. The heart rate has increased from 70 to 150 beats per minute, but the stroke volume has decreased from 80 to 40 mI per beat. What is the patients cardiac output after the hemorrhage?
    • A. 

      4.0 L/min

    • B. 

      5.0 L/min

    • C. 

      6.0 L/min

    • D. 

      7 .0 L/min

    • E. 

      8 .0 L/min

  • 3. 
    A patient experiences a hemorrhage that lasts for 30 minutes. At the end of that time, the mean arterial pressure has dropped from 90 to 75 mmHg. The heart rate has increased from 70 to 150 beats per minute, but the stroke volume has decreased from 80 to 40 mI per beat. How has the patient's total peripheraI resistance (TPR) changed after the hemorrhage?
    • A. 

      Increased

    • B. 

      Decreased

    • C. 

      No change

  • 4. 
    A patient experiences a hemorrhage that lasts for 30 minutes. At the end of that time, the mean arterial pressure has dropped from 90 to 75 mmHg. The heart rate has increased from 70 to 150 beats per minute, but the stroke volume has decreased from 80 to 40 mI per beat   After the hemorrhage, it could be concluded that
    • A. 

      Capillary fluid pressure is decreased.

    • B. 

      InterstitiaI fluid volume is increased

    • C. 

      Capillary colloid osmotic pressure is increased

    • D. 

      Interstitial fluid pressure is increased

    • E. 

      Interstitial colloid osmotic pressure is decreased

  • 5. 
    The concept map below shows a series of events that occur during hemorrhage. Which step in this concept map is incorrect?                           Hemorrhage (blood loss)    1)decreased central volume 2) decreased CO 3) decreased baroreceptor firing 4) Increased stimulation of vasomotor center 5) Increased stimulation of cardio-inhibitory center
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

    • E. 

      5

  • 6. 
    A 70 year-old woman is brought to the emergency room by her daughter, who noticed that her mother is not as energetic as she previously was. Tests revealed the following patient data:
    1. Left ventricular pressure 110/0 mmHg
    2. Right ventricular pressure 95/5 mmHg
    3. Pulmonary artery pressure 20/0 mmHg
    4. Aortic pressure 110/60 mmHg
    Which of the following diagnoses is most consistent with the above information?
    • A. 

      Systemic hypertension

    • B. 

      PuImonic vaIve stenosis

    • C. 

      Aortic vaIve regurgitation

    • D. 

      Left heart failure

    • E. 

      Aortic valve stenosis

    • F. 

      Pulmonic valve regurgitation

  • 7. 
    Which of the following does NOT occur as part of the baroreflex response to a sudden drop in blood pressure?
    • A. 

      Increased cardiac output

    • B. 

      Increased heart rate

    • C. 

      Venoconstriction

    • D. 

      Increased stroke volume

    • E. 

      Decreased total peripheral resistance

  • 8. 
    A decrease in ventricular compliance as a result of repeated myocardial infarctions can lead to which of the following?
    • A. 

      Increased afterload

    • B. 

      Decreased preload

    • C. 

      Increased inotropy

    • D. 

      Increased preload

    • E. 

      Decreased chronotropy (heart rate)

  • 9. 
    A 24 year old medical student presents with chest pain sweating and palpitattons. An EKG reveals a heart rate of 120 per minute. The patient has been experiencing these episodes several times a day since he found out that his father was diagnosed with severe hypertension. Where would you report the effect of his father's illness?
    • A. 

      In the HPI

    • B. 

      In his mental status examination

    • C. 

      In his psychiatric review of systems

    • D. 

      In his family history

    • E. 

      All of the above

  • 10. 
    This patient expresses anxiety about his father's illness. The patient complaint about feeling anxious would be considered which of the following?
    • A. 

      A sign of a panic attack

    • B. 

      A sign of acute anxiety

    • C. 

      An associated symptom

    • D. 

      A baseline health statement

    • E. 

      Unrelated to his presenting complaints

  • 11. 
    Alberto Contador, who just won the Tour de France, has dramatic changes in his cardiac output and distribution of blood flow to exercising skeletal muscle while cycling. If blood flow to exercising skeletal muscle increases 15-fold and cardiac output increases 5-fold, what are the expected changes in renal vascular resistance (RVR), resistance to blood flow to exercising skeletal muscle (SkVR), and total peripheral resistance (TPR) while he is cyclinq? Assume his mean arterial pressure remains the same during exercise as it was while he was at rest. RVR                     SkVR                            TPR
    • A. 

      Increase Decrease Increase

    • B. 

      Increase Decrease Decrease

    • C. 

      Increase Increase Increase

    • D. 

      Decrease Increase Decrease

    • E. 

      Decrease Decrease Decrease

    • F. 

      Decrease Increase Increase

  • 12. 
    The baroreceptor reflex includes several effector pathways. Predict the changes in the variables of the table below when arterial pressure decreases by 25 mm Hg. Abbreviations: skeletal muscle vascular resistance (SkVR); plasma vasopressin [AVP]p,; plasma angiotensin II [Ang II]PI; plasma norepinephrine [NE]PI; cardiac parasympathetic nerve activity (cardiac PANS)   SkVR           AVP          Ang II             NE            Cardiac PANS
    • A. 

      Inc Inc Inc Inc Inc

    • B. 

      Dec Dec Dec Inc Inc

    • C. 

      Inc Inc Dec Inc Dec

    • D. 

      Inc Inc Inc Inc Dec

    • E. 

      Dec Inc Dec Inc Dec

  • 13. 
    During Phase IV of the Valsalva maneuver:
    • A. 

      Venous return and cardiac output are decreased

    • B. 

      Venous return and cardiac output are increased

    • C. 

      Parasympa thetic stimulation of the heart increases cardiac output.

    • D. 

      Sympathetic stimulation of the heart decreases cardiac output.

  • 14. 
    Jim is a healthy 22 year old student who undergoes a graded exercise test on a treadmill at his local gym. What hemodynamic responses would you expect to see as the work load increases?   Stroke Volume            Systolic Pressure                Diastolic Pressure                  Heart Rate
    • A. 

      Increase increase no change increase

    • B. 

      Increase increase increase increase

    • C. 

      Decrease decrease decrease decrease

    • D. 

      Decrease no change increase increase

    • E. 

      Increase no change no change increase

  • 15. 
    Ms. Stanton, a 57 year old woman from Orlando, presents complaining of Iightheadedness upon standing. Her blood pressure is 90/65 while standing versus 130/80 while in a supine position, thus documenting a significant case of orthostatic hypotension. Based on your knowledge of the baroreceptor response, which of the following would occur in a healthy individual during the act of changing body position from supine to standing (the initial effect of standing up)?     Baroreceptor Firing                       Activation of NTS                         Heart Rate
    • A. 

      Increase increase increase

    • B. 

      Increase increase increase

    • C. 

      Decrease increase increase

    • D. 

      Decrease decrease increase

    • E. 

      Decrease decrease decrease

  • 16. 
    Cardiovascular drugs A 53-year-old man reports to the primary care physician with complaint of recurrent headaches that increase in intensity towards the end of the day. His physical examination is notable for the following Weight 88 Kilograms (193 pounds) Pulse 88 beats per minute B.P. 155/ 92 mm Hg Temperature 98.9 F   The physician advises him lifestyle changes including weight reduction, high fiber diet, and exercise. He also prescribes him a medication that reduces the uptake of sodium in the distal convoluted tubules of the nephron. Which of the following drugs was most likely prescribed?
    • A. 

      Propranolol

    • B. 

      Captopril

    • C. 

      Terazocin

    • D. 

      Hydrochlorothiazide

    • E. 

      Hydrlazine

  • 17. 
    A 66-year-old female is referred to the cardiology clinic with fatigue and paIpitations. Her history reveals she is a hypertensive and is currently on antihypertensive medications. Her blood pressure is 132/ 80 mm Hg. Dietary history shows she takes 4 bananas every day because she believes bananas keep her bowel movements regular. She also likes tomatoes. Given that both bananas and tomatoes are high in potassium, which of the following medications if present in her antihypertensive regimen would further increase serum potassium levels?
    • A. 

      Captopril

    • B. 

      Nitroglycerine

    • C. 

      Hydrochlorothiazide

    • D. 

      Famotidine

    • E. 

      Propranolol

  • 18. 
    A 72-year-old male visits the cardiology clinic for annual medical check-up. He is a known case of chronic stable angina and hypertension. On examination his blood pressure is controlled and he rarely gets attacks of angina. His medications include aspirin, a lipid lowering drug/ and an anti hypertensive drug that blocks beta adrenergic receptors. Which of following is an adverse effect of the antihypertensive medication?
    • A. 

      Hyperglycemia

    • B. 

      Tremors

    • C. 

      Tachycardia

    • D. 

      Hyperlipidemia

    • E. 

      Anxiety

  • 19. 
    A 54-year-old man was admitted to the hospital for evaluation of episodes of substernal chest pain, An exercise test elicited the pain that was relieved by sublingual nitroglycerin. A CT scan showed a partial obstruction of the circumflex coronary artery. Which of the following endogenous compounds most likely mediated the effect of the drug",  in  the patient's disorder ?
    • A. 

      Bradykmin

    • B. 

      CAMP

    • C. 

      Acetyl choline

    • D. 

      CGMP

    • E. 

      Norepinephrine

    • F. 

      Adenosine

  • 20. 
    A 52·year-old woman recently diagnosed with variant angina started a treatment with lsosorbide mononitrate and diltiazem Which of the following actions most likely mediated the therapeutic effect of nitrates in the patient's disease?
    • A. 

      Increased left ventricular end-diastolic volume

    • B. 

      Increased blood flow in large epicardial vessels

    • C. 

      Increased heart rate

    • D. 

      Decreased diastolic perfusion time

    • E. 

      Increased cardiac contractility

  • 21. 
    A 47-year·old woman,recently diagnosed with exertional angina,started a treatment with sublingual nitroglycerin and isosorbide mononitrate. Which of the following adverse effects might most likely occur in this patient?
    • A. 

      Cough and wheezing

    • B. 

      Postural hypotension

    • C. 

      Reflex bradycardia

    • D. 

      Cold and pale skin

    • E. 

      Diarrhea

  • 22. 
    A 51-year-old man, recently diagnosed with stage C heart failure started a therapy with captopril. Furosemide and digoxin.Which of the following molecular actions most likely mediated the therapeutic efficacy of digoxin in the patient's disease?
    • A. 

      Increased free Intracellular Ca+'

    • B. 

      Decreased free Intracellular Na

    • C. 

      Activation of Na+/K" ATPase

    • D. 

      Decreased Intracellular cAMP

    • E. 

      Increased free Intracellular K+

  • 23. 
    A 42-year-old man recently diagnosed with heart failure started a treatment that Included digoxin, one tablet daily. Which of the following cardiovascular parameters did digoxin most likely decrease In this patient ?
    • A. 

      Stroke volume

    • B. 

      End-systolic volume

    • C. 

      End diastolic volume

    • D. 

      Residual volume

    • E. 

      Ejection fraction

  • 24. 
    A 57-year-old woman suffering from stage  C heart failure sfarted a therapy which included digoxin,a drug able to increase the contractility of the heart. Which of the following phrases best explains this property of digoxin?
    • A. 

      Increased heart wall stiffness during diastole

    • B. 

      Increased stroke volume with no change In preload

    • C. 

      Decreased end-diastolic cardiac fiber tension

    • D. 

      Increased end-systolic cardiac fiber tension

    • E. 

      Increased stroke volume when preload increases

  • 25. 
    A 53-yoar-old man,admitted to the coronary unit after a coronary artery bypass grafting, was diagnosed with cardiogenic shock. An IV infusion was started with a drug that acts by activating beta-1 receptors Which of the following drugs was most likely administered?  
    • A. 

      Nitroglycerin

    • B. 

      Digoxin

    • C. 

      Dobutamine

    • D. 

      Lidocaine

    • E. 

      Amiodarone

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