5. Sue is diaarosed wilh hypathalamic tunor andt has bxyersecretion oLADH Which

Question

5. Sue is diaarosed wilh hypathalamic tunor andt has bxyersecretion oLADH Which of the fotlowing u readings would be most likely for this patient? n. 120 80 b. 130 c. 175/100 d. 95/65 e 11070 6. A sudden rclease of epinephtrave frona the sdremal medalla a. increases heart rate b. incrcases stroke volune e, increase vasoconstriction in blood vesscls d. increase resistance c all of the abavac 37. Angiotensin 1l prormotes a rise in bleod volturne hy stirmulating the adremal co a. angiotensinogern d. aldosterone e. adrenaline 28. Systenic biood pressare reading ulways cuusisis of two umbers which are called.: a. syslerzici systoliz b. cardiac output resistance d. systuliediastolic e. Both B ard D 39. Which the falowing resuls fiom increastd syrpathetie stinnation of ihe hceuri I. incrcases the force of ventricular contraction 3. increases the beart rate. 4. increasca cardiac cutput 5. inercases caruiac iahihitiry center a. 1 and 3 h. 2 and 5 c. 5 only d. 1. 3 and 4 e. 1, 2, 3 and 4

Explanation / Answer

Answers:

35) c

ADH helps in regulating blood pressure when it falls by enhancing water reabsorption at the renal tubules causing an increase in blood volume and hence a rise in the BP. So, here the patient is diagnosed with a hypothalamic tumor with hypersecretion of ADH so the patient would have an abnormally high recording of blood pressure(175/100) than the normal range of 120/80.

36) e

A sudden release of epinephrine is triggered by many factors such as exercise when oxygenated blood needs to be supplied to tissues continuously. So to enhance cardiac output it causes vasoconstriction of blood vessels increasing the venous return or preload to the heart and hence, in turn, the heart rate increases and this in effect causes a rise in the cardiac output.

37) d

Angiotensin II is produced as part of the Renin- Angiotensin-Aldosterone mechanism which controls the blood pressure of the body. The release of alsdosterone by adrenal cortical cells increases the absorption of water and sodium at the renal tubules incresing the blood volume and blood pressure.

38) d

Blood pressure readings are recorded as Systolic/Diastolic.

39) e

Sympathetic stimulation of the heart causes a positive inotropic effect on the heart, increases the heart rate, peripheral vascular constriction and a rise in cardiac output.These factors also raise the blood pressure.

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