Mrs. Jennings, a diabetic patient, visited the doctor with complaints of increased palpitations, dizziness, constipation, and urinary problems. When all her test results came back clean, the doctor asked her to get a heart rate variability test done. Why do you think the doctor ordered this test? What has happened to Mrs. Jennings?

Q: Which artery most commonly gives rise to the nodal artery a critical blood supply to the…

A: Two major primary coronary arteries are there, namely, the RCA (right coronary artery) and LMCA…

Q: Why does the heart spend more time in diastole then in systole?

A: Diastole and systole are the two phases of the cardiac cycle. They occur as the heart beats and…

Q: What do you think are the clinical symptoms indicating that a person requires the surgical…

A: Answer- Mechanical pacemaker is a small device that is used to send electrical symptoms to the…

Q: Based on your data, how was your heart rate different during the first and last 10 seconds…

A: Heart rate is the pounding of the heart in one minute. Normal heart rate is -60 to 100beats /…

Q: Why should we maintain a patient in a compensated heart failure state?

A: Here we have discuss about why should we maintain a patient in a compensated heart failure state.

Q: What causes an increase in heart rate?

A: Heart rate/Heart pulse It is the speed of the heart beat measured by the number of pounding of the…

Q: What compensatory measures does the body employ in an attempt to restore cardiac output?

A: The circulatory system is one of the most essential systems in the body. The function of the…

Q: What effect does sympathetic stimulation have on the heart?

A: The sympathetic nervous system is responsible for stimulating the vasoconstriction of blood vessels.…

Q: Why is the left side of the heart larger than the right?

A: The right side of the heart is designed to pump the blood into the lungs and then to receive oxygen.…

Q: Define each of the following external features of the heart: auricle, coronary sulcus, anterior…

A: The heart is an organ that pumps blood through the arteries. The pumped blood carries oxygen…

Q: Sino-atrial node is called the pacemaker of our heart. Why?

A: The SA (sino-atrial) node is a neuron’s specialized bundle that is located in the upper part of…

Q: Which nerves of the body carry ANS fibers that innervate the SA and AV nodes of the heart? Which of…

A: The sympathetic nervous system of body prepares the body for stressful conditions while the…

Q: Most of the treatments for heart failure act by reducing the endogenous compensatory mechanisms.…

A: Heart failure brings a variety of problems and it’s indicative of a poor lifestyle that needs…

Q: A patient is taking a drug that blocks beta-adrenergic receptors. What changes in cardiac function…

A: A drug is a chemical substance that produces a biological effect. When the drug is taken by…

Q: A cardiologist observed an enlarged QR wave in the ECG of a patient. What does it indicate?

A: ECG (electrocardiogram) is a graphical representation of the electric current produced by the…

Q: Name the neurotransmitter released from parasympathetic nerve endings and what effect does this…

A: Neurotransmitters are body's chemical messengers used by the nervous system to transmit messages…

Q: Heart beat/rate is controlled by these groups of cells on the heart. a-SA node b-AV node c-nerve…

A: Heart rate is the speed of the heartbeat measured by the number of contractions of the heart per…

Q: A man was rushed to the ER when he complained of a constant pain down his left shoulder. The…

A: The cardiovascular system is primarily composed of the heart, blood, and blood vessels. This system…

Q: Is it necessary to monitor our heart rate? Why or why not?

A: Vital signs Vital signs are the basic components of physiological assessment and are the important…

Q: Why is your heart rate high after running a short distance, but not as elevated after running a much…

A: Introduction: To maintain blood circulation throughout the body, the heart beats nonstop. Its rate…

Q: why a leaking heart valve may cause heart damage over time?

A: Leaky heart valve can affect any of the four heart valves: 1)Aortic valve ( left ventricle and…

Q: Why is the Frank-Starling law of the heart important to the understanding of heart failure?

A: Frank starling law is a law that defines the relation between end diastolic volume and stroke…

Q: Considering the function of the heart, why is it important that the myocardium cannot be tetanized?

A: Tetanized state is a sustained muscle contraction. This happens because muscle’s motor unit is…

Q: what is the major anatomy examines changes to the heart as a result of heart disease ?

A: The human heart is made up of 4 chambers: 2 Atria and two ventricles. The four chambers help pump…

Q: John is your 68-year old neighbor who was recently told by his doctor that his heart’s main…

A: Cardiovascular system consists of the heart, blood vessels. The main function of the heart is to…

Q: What kind of catabolism occurs in the heart?

A: The heart pumps blood through a system of blood vessels, called the circulatory system. The heart…

Q: which of the following groups is most related to the pumping function of the heart? Explain the…

A: The heart is a muscular organ the size of a fist that is found directly behind and considerably to…

Q: Your grandfather was told that his SA node (pacemaker) has stopped functioning. Explain how his…

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system…

Q: What are the ways to tell patients with heart condition a bad news?

A: We are, nevertheless, all human beings. We've all experienced the loss of loved ones. Some we lost…

Q: Which of the following stimuli may produce an increase in heart rate? Select one: a. a threatening…

A: The correct answer is (c) a picture of a natural disaster.

Q: If someone requires a pacemaker, what has gone wrong with their circulatory system?

A: If your heartbeat is too slow (bradycardia), the pacemaker sends electrical signals to your heart to…

Q: What happens when there is an abnormality of the heart’s intrinsic electrical conduction system?

A: The conduction system of the heart is a collection of nodes and conduction cells that are…

Q: Occasionally an ectopic pacemaker will develop in part of the conducting system of the heart. What…

A: An ectopic pacemaker is a collection of excitable cells located outside of the heart's typically…

Q: How is heart failure different from heart attack?

A: The heart is a muscular organ. It pumps blood through the blood vessels of the circulatory system.…

Q: If a person counts 13 pulse cycles in 10 seconds, what is the heart rate in beats per minute?

A: Heart beats and pulse rate are used by physicians for diagnosis of heart disorders and arterial…

Q: After his accidents Christopher Reeves heart would stop beating eventually because the breaking of…

A: Answer : False

Q: In what activity or activities did your heart rate reach above 180? Why do you think it occurred?

A: Heart rate is measured by the speed of the heartbeat by calculating the number of contractions per…

Q: Drugs such as nifedipine slow the heart rate. Nifedipine can be described as what type of drug?

A: The heart is a smooth muscle organ that pumps oxygenated blood throughout the body. Deoxygenated…

Q: is it necessary to monitor our heart rate? Why or why not?

A: KEY WORDS :- Normal heart rate -72 to 82 per minute for a normal adult.

Q: What would happen to the heart rate if some stimulus causes the blood pressure to decrease?

A: Answer given in below step...

Q: What is the consequence of the prolonged plateau of depolarization in ventricular myocytes?   a-it…

A: the consequence of the prolonged plateau of depolarization in ventricular myocytes.

Q: What could cause a healthy person to have a higher than normal resting heart rate?

A: Heart rates can vary from person to person. When the heart beats too rapidly, it pumps less…

Q: Why must this change occur? (in reference to how does the heart rate differ before and after…

A: The process of circulation or internal transport is carried out by the pumping organ of the body,…

Q: When you have a blockage of blood flow to the heart, it will likely result in what...?

A: Heart block is an abnormal heart rhythm where the heart beats too slowly,which results in the…