To review:
The functions of the sympathetic nervous system and the specific effects of adrenergic-blocking drugs.
Introduction:
The central nervous system (CNS) and peripheral nervous system (PNS) are considered as the two important branches of the nervous system. The CNS consists of the spinal cord and brain, whereas the PNS contains autonomic (ANS) and somatic nervous system (SNS). The ANS is further divided into the sympathetic or adrenergic and parasympathetic or cholinergic.
Explanation of Solution
Functions of the sympathetic nervous system:
Adrenergic compounds are involved in the therapeutic effects with the help of their receptors. They stimulate the SNS and it is known as adrenergic agonists. They are also known as sympathomimetic because they mimic the SNS neurotransmitters effects such as norepinephrine, dopamine, and epinephrine. These neurotransmitters are classified in terms of chemical nature as catecholamines. The G-protein coupled adrenergic receptors targets the catecholamines neurotransmitters such as epinephrine (adrenaline) and norepinephrine (noradrenaline). These adrenergic receptors of the SNS provide the check and balance system to maintain the body homeostasis.
Specific effects of adrenergic-blocking drugs:
The adrenergic-blocking drugs cause the opposite effects with the adrenergic agonist drugs. They block the stimulation of sympathetic nervous system neurotransmitters and it is known as adrenergic antagonists. The specific effect is to bind the adrenergic receptors and inhibit or block the stimulation effect of the SNS. It is termed as sympatholytics.
The adrenergic-blocking drugs are classified into alpha and beta-adrenergic blockers.
Alpha-adrenergic blocking drugs: It blocks the adrenergic effects of norepinephrine that leads to vasodilation, miosis and reduces the blood pressure and tone of smooth muscles of the prostate and bladder.
Beta-adrenergic blockers: The blocking of beta-adrenergic antagonists are non-selective and cardio-selective in nature. They allow more supply of oxygen to the heart muscle by decreasing the oxygen consumption and myocardial energy in the body system.
Thus, the functions and specific effects of adrenergic antagonists include the blocking of SNS receptors stimulation.
Want to see more full solutions like this?
Chapter 19 Solutions
Pharmacology and the Nursing Process, 8e
- Provides a thoughtful and relevant analysis of how identifying key sources of fear and anxiety and effective interventions in school age patients will impact nursing practice, supportedby specific examplesarrow_forwardOrganize a series of questions that you will ask to our virtual patient Sara Bellum, based on new guidelines. Find patient's medical charting separately.arrow_forwardMake a patient interview sheet for patients with Diabetes and CKD: Assessing symptoms Signs Biochemical data Nutrition focused physical exam key points.arrow_forward
- Module 4 - Interpreting Labs.pd X CB CastleBranch Login Merged-TDL-Files--2024103012280X pl Dietetic Practitic 6uo8tbjf.cloudfront.net/68f85c32-16e5-11ef-925e-aaa4f1cd8999?response-content-disposition-inline DaVita Dietitian Reference Manual - + 90% Module 4-Evaluating Laboratory Values Case 3 Ray dialyzes three times a week on 2 K+ bath. His appetite is fair and he takes ReGen (4 oz. TID) to supplement his intake. His medications include: Nephrovite RX, PhosLo (1 at breakfast, 1 at lunch, 2 at supper) Prilosec, Imdur, Zemplar and Epogen. He says he's been feeling weak and tired and has SOB (shortness of breath). He reports having diarrhea for 2 days. His blood pressure is low Date PreBUN PostBUN URR KUV Creat Alb CO2 K+ Ca PO4 PTH- Hgb intact 5.3 9.0 4.9 160 11.5 5.4 8.9 5.4 6.5 9.3 6.1 01/01 02/01 03/01 37 8 40 9 104 missed 78% 1.6 7.7 3.2 25 78% 1.6 3.5 22 3.0 21 7.5 7.6 10.8 8.4 What do you suspect is the reason for his change in lab values? Case 4 Margaret is a 78-year-old woman…arrow_forwardModule 4 - Interpreting Labs.pd X CB CastleBranch Login Merged-TDL-Files--2024103012280X 1k6uo8tbjf.cloudfront.net/68f85c32-16e5-11ef-925e-aaa4f1cd8999?response-content-disposition=inline DaVita Dietitian Reference Manual + 90% Module 4-Evaluating Laboratory Values CASE STUDIES Case 1 Steve has been on hemodialysis for 3 years. His medications include Nephrocaps, PhosLo (3 at breakfast, 2 at lunch, 3 at supper), Lisinopril, EPO and Venofer. Patient reports he has had the flu and not eaten much for the past 4-5 days, but has continued to take all medications as prescribed. Date PreBUN PostBUN URR KWV Creat Alb CO2 K+ Ca PO4 PTH- Hgb intact 12/01 54 01/02 55 02/02 40 18 17 12 68% 1.33 12.3 3.9 24 4.7 11.0 5.9 69% 1.39 12.2 4.0 23 4.8 11.0 5.2 70% 1.45 12.5 4.0 26 4.1 12.5 4.5 96 12.3 12.1 11.9 What are possible reasons for increasing hypercalcemia in February? Case 2 Barb has been on hemodialysis for 1½ years. She has diabetes, but is not currently taking an antiglycemic agent.…arrow_forwardzm Module 4 - Interpreting Labs.pd X CB CastleBranch Login X Merged-TDL-Files--2024103012280X marks Tools Window Help 100% E pl Dietetic Practitioners s://d3da1k6uo8tbjf.cloudfront.net/68f85c32-16e5-11ef-925e-aaa4f1cd8999?response-content-disposition=inline + 90% DaVita Dietitian Reference Manual Module 4-Evaluating Laboratory Values REVIEW QUESTIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. True False A patient who has a low bicarbonate level will also have a low potassium level. Causes of low albumin include low protein intake, infection, proteinuria and severe liver disease. Inaccurate handling of the blood specimen can result in a falsely low PTH. In a patient on hemodialysis, a potassium level of 6.0 is acceptable. An excessive intake of meat will result in higher levels of BUN, phosphorus and potassium. In a patient without kidney function, hyperglycemia will be accompanied by hypokalemia. A patient with access problems is likely to have increased levels of potassium, BUN, creatinine…arrow_forward
- Tools Window Help zm Module 4 - Interpreting Labs.pd X CB CastleBranch Login x Merged-TDL-Files--2024103012280X pl Dietetic Prac Halk6uo8tbjf.cloudfront.net/68f85c32-16e5-11ef-925e-aaa4f1cd8999?response-content-disposition=inlin - + 90% CASE STUDIES-DISCUSSION Case 1 His lower BUN, K+ and phosphorus are consistent with his reported decrease in intake due to the flu. His high calcium level is a consequence of taking his prescribed amount of PhosLo while eating less food. Thus, he absorbed more calcium from his phosphate binder. In this patient, with adynamic bone disease (low PTH without IV vitamin D therapy), he is unable to deposit calcium in his bones, so serum level rose quickly. PhosLo was held and the next week his calcium was 11.0 and phosphorus 5.8. Other possibilities for a rise in calcium might be that patient took Tums (or another calcium-containing antacid) because of the flu or heartburn; took phosphate binders between meals rather than with meals; was consuming…arrow_forwardlast two please (3 and 4)arrow_forward08tbjf.cloudfront.net/68f85c32-16e5-11ef-925e-aaa4f1cd8999?response-content-disposition=inline DaVita Dietitian Reference Manual + 90% Module 4-Evaluating Laboratory Values DISCUSSION QUESTIONS 1. Why is hyperkalemia dangerous? 2. What are 3 possible causes of hyperkalemia? 3. How is hyperkalemia managed? 4. What are 3 reasons for hypoalbuminemia in hemodialysis patients? 5. What are the side effects of hypoalbuminemia? 6. What are 3 possible reasons for a patient to have a low BUN? A high BUN? FEB 5 tv MacBook Airarrow_forward
- As nursing students dealing with school age patients with anxiety or fear related to hospitalisation, identify relevant and credible resources and explains their significance.arrow_forwardDescribe which of the 4 biomolecules could be used as a source of carbon and energy in a microbial growth media?arrow_forwardHow to teach mock dialysis (HD) patients how to decrease phosphorus on his/her dietarrow_forward
- Phlebotomy EssentialsNursingISBN:9781451194524Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)Publisher:JONES+BARTLETT PUBLISHERS, INC.Gould's Pathophysiology for the Health Profession...NursingISBN:9780323414425Author:Robert J Hubert BSPublisher:SaundersFundamentals Of NursingNursingISBN:9781496362179Author:Taylor, Carol (carol R.), LYNN, Pamela (pamela Barbara), Bartlett, Jennifer L.Publisher:Wolters Kluwer,
- Fundamentals of Nursing, 9eNursingISBN:9780323327404Author:Patricia A. Potter RN MSN PhD FAAN, Anne Griffin Perry RN EdD FAAN, Patricia Stockert RN BSN MS PhD, Amy Hall RN BSN MS PhD CNEPublisher:Elsevier ScienceStudy Guide for Gould's Pathophysiology for the H...NursingISBN:9780323414142Author:Hubert BS, Robert J; VanMeter PhD, Karin C.Publisher:SaundersIssues and Ethics in the Helping Professions (Min...NursingISBN:9781337406291Author:Gerald Corey, Marianne Schneider Corey, Cindy CoreyPublisher:Cengage Learning