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Do ace inhibitors affect preload or afterload?

ACE inhibitors primarily affect afterload by causing vasodilation, which reduces systemic vascular resistance. This action can lower blood pressure and decrease the workload on the heart. While they may have some indirect effects on preload by reducing fluid retention, their main impact is on afterload reduction.


How does dehydration affect preload?

Severe dehydration will decrease preload because there won't be as much volume coming into the heart.


Do the kidneys affect angiotensin II?

Certain kidney disorders increase the production of angiotensin II, another cause of hypertension


Do beta blockers thin blood?

No. Beta blockers slow the heart rate and only affect the heart and how fast it pumps.


What are 3 important factors affecting stroke volume?

Venous return controls EDV (end diastolic volume) and thus stroke volume and cardiac output. Venous return is dependent on: - blood volume and venous pressure - vasoconstriction caused by the sympathetic nervous system - skeletal muscle pumps - pressure drop during inhalation


How does severe dehydration affect preload?

It lowers the energy of a certain person causing him/her to move slowly.


What is the difference between metoprolol and ramipril?

Metoprolol is a drug that is in the class of beta blockers, that are intended to control high blood pressure, and (in my case) heart rate. Meloxicam is an NSAID intended to reduce pain, and should not be combined with aspirin.


How does preload affect the stroke volume?

Preload refers to the degree of stretch of cardiac muscle cells before contraction. These muscles exhibit a length-tension relationship. When the cardiac muscle cells are at rest, they are shorter than their optimal length. The most important factor affecting the stretching of cardiac muscles is the venous return, that is, the amount of blood returning back to the heart. Slow heartbeat and exercise can increase the venous return. This will lead to the stretching of the ventricles and it will hence increase the contraction force.As reflected by the Frank-Starling Law, the stroke volume increases with the end diastolic volume. The greater filling volume will lead to the heart to stretch more and this will increase its force of contraction.


Does preload influence cardiac contractility?

Preload does not directly influence cardiac contractility, as they are distinct concepts. Preload refers to the degree of stretch of the cardiac muscle fibers at the end of diastole, which affects the volume of blood in the ventricles. While increased preload can enhance the force of contraction through the Frank-Starling mechanism, contractility itself is primarily influenced by factors such as sympathetic nervous system stimulation and circulating hormones. Thus, while preload can affect the overall cardiac output, it does so indirectly through its interaction with contractility.


How do beta blockers and ACE inhibitors affect tattooing?

Beta blockers and ACE inhibitors have an affect on people's experiences during tattooing. For instance, people on beta blockers and ACE inhibitors report not being able to sit for tattoos as long as they would like. Additionally, it decreases people's threshold for pain, making the tattoo experience less pleasurable.


How do other drugs interact with calcium channel blockers?

Taking calcium channel blockers with certain other drugs may affect the way the drugs work or may increase the chance of side effects.


How do beta blockers affect athletic performance in sports?

Beta blockers can decrease heart rate and blood pressure, which may reduce physical performance in sports that require high levels of cardiovascular activity.