Conditions › Cardiovascular
Myocardial Infarction Nursing Care Plan and Interventions
For a suspected MI, get a 12-lead ECG within 10 minutes, give aspirin as ordered (oxygen only if SpO2 is low), place IV access and draw troponin. STEMI care means opening the artery fast (PCI or fibrinolytics), then watching for dysrhythmias and pump failure and teaching cardiac rehab and discharge meds.
Myocardial infarction nursing care plan
| Nursing problem | Goal | Key interventions |
|---|---|---|
| Acute pain (ischemic) | Chest pain relieved. | |
| Decreased cardiac output | Rhythm and BP stable; heart failure signs caught early. | |
| Ineffective cardiac tissue perfusion | Artery reopened within the time goal. | |
| Risk for bleeding (after PCI or fibrinolytics) | Access site intact; distal pulses present. |
Problem wording is plain-language nursing diagnosis style. Your program may require NANDA-I labels and your own assessment data.
What it is
Myocardial infarction (MI)
A plaque ruptures, a clot blocks the coronary artery, and the heart muscle beyond the block dies. 1,2
Time is muscle: the longer the artery stays shut, the more muscle dies.
Assessment: what you will see
MI cues
Deep chest pressure spreading to the jaw, back or arms, stronger and longer than angina, with dyspnea, sweating or nausea. 3
Rest and nitro help little or only briefly.
Atypical MI cues
Women more often have extra or vague symptoms. Older adults may report mainly dyspnea. MI can be silent in diabetes. 4,3
Vague fatigue or breathlessness in an older client still earns a 12-lead ECG.
Troponin
A heart-specific protein released when heart muscle is damaged. A rise above the lab's cutoff with ischemic symptoms means MI. 3,2
It takes hours to rise, so troponin is drawn serially. One normal value rules out nothing.
12-lead ECG within 10 minutes
STEMI: ST elevation in 2 or more adjacent leads. NSTEMI: no ST elevation; may show ST depression or T-wave inversion. 3
The 12-lead decides the path: a STEMI goes straight to the cath lab.
Complications and red flags
Dysrhythmias after MI
Ischemic or dead tissue disrupts conduction. VFib happens most often in the first 24 hours, usually within 6. 4,3,5
Keep continuous monitoring. Reopening the artery can trigger dysrhythmias too.
Pump failure after MI
Dead muscle cannot squeeze. Crackles, S3, dyspnea, hypotension and tachycardia point to heart failure or cardiogenic shock. 6
A large MI is the most common cause of cardiogenic shock.
Priority: what the nurse does first
First actions for suspected MI
Vital signs, 12-lead ECG, cardiac monitor, IV access and troponin. Oxygen only if the SpO2 is low. 2,3,7
Routine oxygen does not help a client who is already well saturated.
Aspirin in suspected MI
Chewed aspirin, 160 to 325 mg per protocol, keeps platelets from sticking and growing the clot. 7,3
Check first for an aspirin or NSAID allergy and active bleeding.
Nursing interventions and treatment
STEMI: open the artery
Emergency PCI, with a goal under 90 minutes from arrival to balloon. Fibrinolytics if timely PCI is not available. 3,2
Note when the pain started. Outcomes improve as the time to the cath lab shrinks.
Nitro and morphine in MI
Nitro relieves ischemic pain; hold if SBP is under 90 or after a sildenafil-type drug. Morphine only if nitro fails. 7,8
MONA is outdated: oxygen and morphine are no longer routine for every client.
Fibrinolytics
Alteplase or tenecteplase dissolves the clot when PCI is not available in time. Bleeding is the main, possibly fatal, risk. 5
Screen first: active bleeding, prior stroke, severe uncontrolled hypertension.
Discharge meds after MI
Two antiplatelets (aspirin plus a P2Y12 inhibitor) and a statin. A beta blocker and ACE inhibitor or ARB, especially if EF is 40% or less. 3,9,2
Beta blocker: hold per order, commonly for HR under 60 or SBP under 90, and notify the provider.
Evaluation: is care working?
After PCI
Check the access site for bleeding or hematoma and the pulses below it. Femoral site: leg straight, flat in bed for hours per protocol. 2
Get baseline distal pulses before the procedure to compare after.
Client teaching
Recovery teaching after MI
Cardiac rehab, take antiplatelets without gaps, report bleeding, quit smoking, eat low saturated fat and low cholesterol. 2
Sex is usually safe once they can climb a flight of stairs without chest pain or dyspnea.
NCLEX traps
MI vs angina
MI: muscle death, troponin rises, pain lasts. Angina: ischemia, troponin normal; stable angina eases in minutes with rest or nitro. 2,3
Unstable angina, NSTEMI and STEMI are all ACS. Unstable angina and NSTEMI look alike; troponin decides.
Right ventricular MI
Hypotension, distended neck veins and clear lungs. Avoid nitrates and diuretics; treat low BP with IV normal saline as ordered. 3
Inferior MI with low BP: think right ventricle (right-sided leads) before giving nitro.
Try a myocardial infarction question
NCLEX-style, approved by a licensed RN. Pick an answer, check it, then read the rationale.
Question 1 · Physiological Adaptation
A client arrives at the emergency department reporting crushing chest pain and diaphoresis. Which finding is most consistent with an acute myocardial infarction?
Show answer and rationale
Answer: C. Classic MI presents with crushing chest pain, diaphoresis, and pain that may radiate to the jaw or arm; once MI is suspected, the nurse gets a 12-lead ECG within 10 minutes and gives aspirin per protocol. Pain relieved completely by rest or resolving within 5 minutes is more typical of stable angina, not MI. Pleuritic pain worsened by breathing suggests a pulmonary or pericardial cause rather than cardiac muscle death. Recognizing the classic MI pattern helps the nurse act quickly to reduce myocardial damage.
Checked against: OpenStax Medical-Surgical Nursing, 12.5
Keep studying myocardial infarction in NurseLingo Pro
Pro has 30 myocardial infarction questions like these, with a rationale for every answer. Everything for myocardial infarction in one place. A free account gets 5 free opens of any condition; Pro opens all 277.
Test yourself: free cardiac practice questions with answers and rationales.
Frequently asked questions
What are the priority nursing diagnoses for myocardial infarction?
Common nursing problems for myocardial infarction include acute pain (ischemic); decreased cardiac output; ineffective cardiac tissue perfusion; risk for bleeding (after pci or fibrinolytics). Choose the ones your assessment supports and rank airway, breathing and circulation problems first.
What does the nurse do first for myocardial infarction?
Vital signs, 12-lead ECG, cardiac monitor, IV access and troponin. Oxygen only if the SpO2 is low. Chewed aspirin, 160 to 325 mg per protocol, keeps platelets from sticking and growing the clot.
What are the priority nursing interventions for a patient with myocardial infarction?
Get a 12-lead ECG within 10 minutes, check vital signs, start a cardiac monitor, place IV access and draw troponin. Give aspirin as ordered and oxygen only if the SpO2 is low. Then prepare for reperfusion (PCI or fibrinolytics) and watch for dysrhythmias.
What are the nursing care plans for a myocardial infarction?
Common nursing problems are acute chest pain, decreased cardiac output, poor heart muscle perfusion and bleeding risk after PCI or fibrinolytics. Goals include relief of pain, a stable rhythm and blood pressure, and an intact access site with good distal pulses.
More cardiovascular
Related cheat sheets
Sources
- OpenStax Pharmacology for Nurses, 21.1
- OpenStax Medical-Surgical Nursing, 12.5
- merckmanuals.com
- OpenStax Pharmacology for Nurses, 22.1
- OpenStax Pharmacology for Nurses, 20.4
- OpenStax Medical-Surgical Nursing, 35.2
- OpenStax Pharmacology for Nurses, 22.2
- OpenStax Pharmacology for Nurses, 18.7
- OpenStax Pharmacology for Nurses, 18.4
For study only, not medical advice. Follow your program, your facility's policies and the provider's orders.