Cardiology and Cardiovascular Care

01Purpose and scope

• This manual supports the course Cardiology and Cardiovascular Care. It describes how cardiac and vascular patients are assessed, monitored, tested, treated, and handed off in everyday clinical work, from an emergency department chest pain bay to a cardiac step-down unit or a outpatient heart failure clinic.
• The scope covers adult cardiovascular care in hospital and ambulatory settings, along with the routine tasks that nurses, technicians, advanced practice clinicians, pharmacists, and physicians share. It does not teach pathophysiology in depth, and it does not cover pediatric congenital heart disease, transplant protocols, or interventional procedure technique, which have their own specialized references.
• Cardiology is a regulated, high-risk field. This guidance does not replace qualified professional judgment, approved local procedures, or required authorization for any test, medication, or device. Where rules depend on jurisdiction, such as privacy requirements, scope of practice, or telemetry staffing ratios, check the current requirements of your state, province, or national regulator and your facility policy.

02Core principles

• Cardiovascular care rests on a few habits that matter more than any single tool. Begin with the question of whether the heart is currently failing to meet demand, whether there is an acute threat such as ischemia, arrhythmia, or tamponade, and whether the patient is hemodynamically stable. Those three questions set the urgency for everything that follows.
• Symptoms, vital signs, and the physical examination remain the foundation. A clinician who documents jugular venous pressure, peripheral edema, lung crackles, perfusion, and blood pressure in both arms is building a baseline that a monitor alone cannot provide. Test results are interpreted against that bedside picture, not in isolation.
• Risk is continuous rather than binary. A troponin value, an ejection fraction, or a risk score informs the decision but does not make it. Clinicians weigh bleeding risk against thrombotic risk, comorbid kidney disease against contrast load, and frailty against aggressive therapy.
• Patient goals shape the plan. Shared decision making, especially around anticoagulation, device implantation, and end-of-life preferences, is a standard expectation in current cardiology guidance, and it is a practical necessity when the patient must manage daily medications and weight checks at home.

03Planning and preparation

• Start each shift or visit by reviewing the active problem list, the most recent echocardiogram, electrocardiogram, and laboratory trends, and the current medication administration record. Note allergies, anticoagulant status, renal function, and any device such as a pacemaker, implantable defibrillator, or left ventricular assist device. Knowing the device type and its magnet response before a procedure prevents avoidable errors.
• Confirm equipment readiness. Cardiac monitors need functioning electrodes, correct lead placement, and alarm limits set to the patient's baseline rather than default values. Defibrillators, crash carts, and pacing equipment should be checked on the schedule your facility requires, and staff should know where they are located on the unit.
• Plan for the patient's logistics as well. Identify whether the patient can climb stairs, needs an interpreter, lives alone, or has a caregiver who can help with weight logs. For outpatient work, confirm that the patient has a working scale, a blood pressure cuff of appropriate size, and a clear medication list.
• Set expectations for stakeholders before the work begins. Cardiology teams typically include the attending cardiologist, fellows, nurses, cardiac technicians who run telemetry and perform electrocardiograms, pharmacists managing anticoagulation, dietitians, physical therapists for cardiac rehabilitation, and social workers. Agree on who owns each decision and who will be called overnight.

04Recommended workflow

1. 1
   : Triage the presenting complaint. For suspected acute coronary syndrome, obtain a 12-lead electrocardiogram promptly, generally within about 10 minutes of arrival, and have it reviewed by a clinician who can act on ST changes. Record the time of symptom onset because reperfusion decisions depend on it.
2. 2
   : Collect a focused history and examination. Ask about exertional pattern, rest pain, dyspnea, orthopnea, palpitations, syncope, and recent medication changes. Examine for murmurs, gallops, pulses, and signs of volume overload or low output, and document what was found and what was not checked.
3. 3
   : Order and interpret the core tests. Common first-line studies include serial troponin measurements, a basic metabolic panel, a complete blood count, natriuretic peptide levels when heart failure is in question, chest radiography, and transthoracic echocardiography. Interpret each result alongside the clinical picture and note when a test is pending or unreliable, such as troponin drawn too early.
4. 4
   : Decide on the immediate management pathway. This may mean antithrombotic therapy, rate or rhythm control, diuresis, vasoactive support, or transfer for catheterization. Each pathway has specific contraindications, dosing considerations, and monitoring requirements, and the order set or protocol approved by your institution should be followed.
5. 5
   : Monitor and reassess. Track heart rate, rhythm, blood pressure, oxygen saturation, urine output, weight, and symptoms at intervals appropriate to acuity. Reassess after each intervention, and escalate when trends move the wrong way rather than waiting for a single abnormal value.
6. 6
   : Plan discharge or transition. Confirm the diagnosis, the medication list with reasons for each change, follow-up appointments with dates set by the team, the home weight and symptom action plan, and who the patient should call. Teach-back with the patient or caregiver is the most reliable way to confirm understanding.

05Quality checks, risk controls and compliance

• Medication safety is the highest-yield control. Anticoagulants, antiarrhythmics, digoxin, and inotropes carry narrow margins. Use two identifiers, verify weight-based doses, check renal function before dosing, and confirm the indication. Pharmacist review of new anticoagulants and of any combination with antiplatelet therapy is a reasonable standard in most hospitals.
• Monitoring alarms carry their own risk. Alarm fatigue is well documented in telemetry settings. Set limits deliberately, respond to every alarm with a bedside check, and escalate persistent or unexplained alarms rather than silencing them. Periodically audit whether lead-off and artifact alarms are being addressed promptly.
• Procedural and device safety require checklists. Before a cardioversion, confirm anticoagulation or a transesophageal echocardiogram per protocol, document sedation, and have resuscitation equipment at hand. For patients with implanted devices, know the manufacturer's guidance for MRI, electrocautery, and magnet use, and consult the device clinic when in doubt.
• Compliance varies by jurisdiction. Privacy rules for health information, telemetry staffing requirements, reporting obligations for certain device events, and rules on who may interpret electrocardiograms differ by country, state, and institution. Locate the current authoritative source for your setting and keep your facility policy manual accessible.

06Collaboration and documentation

• Clear documentation is both a clinical tool and a legal record. Notes should state the working diagnosis, the findings that support it, the plan with the reason for each decision, and the response to treatment. Avoid copying forward large blocks of text, because stale data can drive wrong decisions.
• Structured handoffs reduce errors at transitions. Use a consistent format such as the SBAR model or your unit's standard tool, and include the current rhythm, the last troponin and trend, pending results, drips and their rates, and the contingency plan if the patient deteriorates. Verbal handoffs should be confirmed in writing in the electronic record.
• Cardiac rehabilitation, heart failure clinics, and primary care each hold part of the picture. Send concise summaries after discharge with the medication changes highlighted, and ask the receiving clinician to confirm receipt. Patients often see several prescribers, so one shared medication list is worth the effort.
• Escalation paths should be written down. Specify when the bedside nurse calls the resident, when the resident calls the attending, and when a rapid response team or cardiac arrest team is activated. Staff who feel unable to escalate are a patient safety risk.

07Measures and continuous improvement

• Track a small set of indicators that reflect real practice. Common measures include door-to-electrocardiogram time for chest pain, the proportion of heart failure patients with a follow-up visit within the window your guideline or local policy sets, rates of discharge on guideline-recommended therapies when indicated, 30-day readmissions for heart failure, and documented shared decision making for anticoagulation. Choose targets with your quality team rather than adopting numbers from memory.
• Use audit and feedback cycles. Pull a sample of charts each quarter, review cases of delayed treatment or adverse drug events, and discuss them in a non-punitive forum. Change one process at a time, such as a standard heart failure education sheet or a revised alarm policy, and measure whether it helped.
• Be aware of the limits of measures. Process metrics can be met while outcomes stay poor, and risk adjustment is imperfect. Patient-reported outcomes such as symptom burden, functional status, and quality of life add useful context that administrative data do not capture.
• Trade-offs are real. Stricter door-to-treatment targets may increase false activations, and aggressive readmission reduction can push patients out of hospital before they are stable. Review measures together with safety and patient experience data.

08Common mistakes and how to prevent them

• Treating the number instead of the patient is a frequent error. A blood pressure of 88 systolic in a patient who is alert and warm may be acceptable, while a value of 110 in a patient with cool, mottled skin may not. Pair every number with a bedside assessment and document both.
• Missing the medication history causes many avoidable harms. Ask about over-the-counter nonsteroidal anti-inflammatory drugs, supplements such as potassium or herbal products, and recent antibiotic courses, since these can change kidney function, potassium, and anticoagulant effect. Use a structured reconciliation step at admission and at discharge.
• Overlooking the dry weight in heart failure leads to repeated admissions. Establish an estimated dry weight during the stay, communicate it in the discharge summary, and teach the patient the threshold for calling the clinic. Many readmissions trace back to a gap between the plan and what the patient understood.
• Assuming a normal test rules out disease is another trap. A normal troponin drawn too early does not exclude myocardial infarction, and a normal echocardiogram does not exclude coronary disease. Repeat measurements at the interval your protocol specifies and document the reasoning for any decision not to test further.
• Failing to close the loop on pending results erodes trust and safety. Assign an owner for each pending test, check results before the patient leaves, and document who will follow up on any abnormal finding after discharge.

09Practical checklist

• Confirm the working diagnosis and the most urgent threat before any routine task.
• Obtain and review a 12-lead electrocardiogram when the presentation suggests cardiac ischemia or arrhythmia, and document the time.
• Reconcile the medication list, including anticoagulants, antiarrhythmics, and over-the-counter products.
• Check renal function, potassium, and weight before dosing high-risk medications.
• Set monitor alarm limits to the patient's baseline and respond to every alarm with a bedside check.
• Document device type, magnet response, and device clinic contact for patients with implanted devices.
• Record daily weight, intake and output, and symptom trends for heart failure patients.
• Use a structured handoff format and confirm pending results and contingency plans.
• Teach the patient and caregiver using teach-back, with written warning signs and follow-up dates.
• Review quality indicators quarterly and act on one process change at a time.

★Learning sources

• Micro Degree: Cardiology and Cardiovascular Care
• Micro Degree: Healthcare Administration Practice
• Micro Degree: Physiotherapy Assistant Operations
• Micro Degree: Cardiac Care Support