Please print out the case study and hand write you answers on the sheets. Emaile

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Please print out the case study and hand write you answers on the sheets. Emailed or typed case studies will NOT be accepted. You may work in groups but you CANNOT turn in identical papers. BIOL 2402 CASE STUDY 2 Name Group Period (Sectiorn) Sofia Martinez is a 19-year-old sophomore majoring in pre-medicine at the University of Arizona. In the past few weeks leading up to final exams, Allison has felt unusually tired despite receiving an adequate amount of sleep at night. She also has had frequent headaches, and has experienced times when her heart 'felt like it was missing a beat. She has noticed lightheadness and blurred vision at times. Friends sometimes comment that she looks "pale and tired: Yesterday at lunch, Sofia fainted while waiting in line in the cafeteria. Initially, she attributed this episode to being unusually tired and hungry, but later in the day she fainted again while waiting to mail a package at the Post Office. Both times she collapsed to the floor but recovered spontaneously. When Sofia informed her mother about what had happened that day, her mother immediately scheduled an appointment for Sofia to see the family physician.

Explanation / Answer

10.The formula for mean systolic blood pressure is 2/3diastolic pressure +1/3systolic pressure.

The blood pressure tends to drop in standing position compared to the sitting,supine and supine position with crossed leg.Both the systolic and diastolic pressure was found to be highest in supine position compared to others.

11.Sofia has orthostatic hypotension.It is a form of blood pressure when standing up from sitting or lying down.So that is the reason blood pressure returned to normal when Sophia returns to the reclining position.

The mechanism involves the activation of sympathetic adrenergic neurons,plasma concentration of nonrepinephrine increase and these effects can be abolished by trimetaphan,an autonomic ganglionic blocking agent.

12.For mild orthostatic hypotension the simple treatment is to sit or like down immediately after feeling lightheaded.Midodrine ,a vasopressor is safe for treating neurogenic hypotension.Drinking plenty of water may be a natural remedy.

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