Nurs 480 Exam 2 Newest 2026-2027 Actual Exam

• | P a g e

Nurs 480 Exam 2 Newest 2026-2027 Actual Exam Preparation With Complete Questions And Correct Answers With Rationales | Already Graded A+||Brand New Version!!

What are complications of coronary artery bypass graft (CABG)? - ANSWER-Pulmonary complications, such as atelectasis and PNA

Decreased CO

Hypothermia

Electrolyte disturbances, K and Mg depletion is common

Neurologic defects

Clots are common

Stroke

• / 4

• | P a g e

What are dysrhythmias? - ANSWER-Abnormal heart rhythms

Can directly decrease CO by changing stroke volume and HR

Recognition is critical in maintaining adequate perfusion

What does the conduction system of the heart do? - ANSWER- Starts electrical impulse at sinoatrial (SA) node and sends it through the heart tissue to get to the atrioventricular (AV) node.It then travels through the bundle of His, to the purkinje fibers, causing ventricle contractions

What happens when the vagus nerve is stimulated? - ANSWER- Decrease HR

What happens if the sympathetic nerves are stimulated? - ANSWER-Increase HR

Describe depolarization - ANSWER-Na+ moves into the cells making the inside of the cells positively charged compared to outside

• / 4

• | P a g e

Cells contract and push blood through the heart

Describe repolarization - ANSWER-Closing of Na+ channels and opening of K+ channels

Cells become negatively charged again, heart is relaxing

What does the P wave represent? - ANSWER-atrial depolarization

What does the QRS complex/interval rpresent? - ANSWER- Depolarization of both ventricles

What is electrocardiographic monitoring? - ANSWER-Graphic tracing of electrical impulses produced in the heart

What are the steps to analyzing EKG? - ANSWER-1. determine HR

• determine if rhythm is regular or irregular
• / 4

• | P a g e

• determine P wave regularity and shape

• measure PR interval

• measure QRS duration, check consistency in appearance

• examine ST segment, depression or elevation

• assess T wave

• measure QT interval

ST elevation indicates? - ANSWER-MI

ST depression indicates? - ANSWER-Cardiac injury

Describe normal sinus rhythm - ANSWER-All PQRST components are normal

Describe sinus arrythmia - ANSWER-Like normal sinus rhythm but SA node fires irregularly

• / 4