Which has as its main function the “reabsorption of sodium, chloride, amino acids and about 80% of eventual water reabsorption?”

READ ALL OF THESE INSTRUCTIONS CLOSELY BEFORE BEGINNING THIS EXAM: This contains multiple choice (50), True/False (20), fill in the blank (10) and essay questions. You will be given 6 essay topics to choose from, you will only answer 3 for regular credit, this means you leave 3 essay questions blank.  You may chose to answer ONE additional essay question for extra credit points.  The test must be completed in ONE SITTING (you may not save and return to the test).  Time Limit and Expectations: You will have 90 minutes to complete this exam. This is a closed book, closed notes test. NO other resources should be used at any time during the exam. NO communication should occur between you or anyone enrolled in this course should take place at any time during the exam. NO additional electronic devices should be utilized for the completion of this exam. NO cheating of ANY kind will be tolerated. Any cheating that is discovered will be dealt with as per the syllabus. I trust you to be honest and adhere to the honor code as stated below during this exam: San Jacinto College students should exhibit honesty, integrity, and high standards in their academic work. Members of the college community benefit from an open and honest educational environment. Upholding academic integrity is the responsibility of everyone. Refer to the Student Handbook Section: Policy on Cheating, Plagiarism, Collusion, and Fabrication. Make sure BEFORE you begin the exam that you have a strong internet connection on a laptop or computer, do NOT take this test on your phone. Please make sure that pop-up blockers have been turned off during the time you are taking the exam. You will be using Respondus Lockdown Browswer for this exam. 

If a sound beam moves from air into soft tissue at an incident angle of 60 degrees, what is the angle of reflection?

All of the following are coupling agents or mediums typically used for US exams, EXCEPT:

When prescribing antihypertensive therapy for an older adult patients (greater than 60yo), the family nurse practitioner recognizes that which class of antihypertensive agents to avoid in the older adult?

A hemorrhagic stroke is caused by the interruption of blood flow to a localized part of the brain due to the formation of a clot.

Identifying patients with metabolic syndrome cannot help predict heart attacks.

People who are high in cynical hostility generally have a low level of social support.

Let G=(V,E) be a directed, weighted graph with arbitrary weights (this is, weights can be negative). You are further told there is exactly one edge e=(s, v) with negative weight. True or False: there is an algorithm to find the length of the shortest path from s to all other vertices in time O(m+n) log n).

A 68-year-old man is admitted to the ICU with septic shock. He initially presented with hypotension and fever to 102.5°F. After a 3-L normal saline bolus, he continues to be hypotensive and requires pressures. Blood and urine cultures are obtained. The patient is unable to expectorate sputum. The patient’s past medical history is significant for COPD, coronary artery disease, and alcohol abuse. There is alsolocal incidence of cephalosporin-resistant S pneumoniae is >1%. Which of the following is the recommended empiric antibiotic regimen for this patient?