ATI MED SURG STUDY CASE: Key Concepts In Cardiac And Respiratory Nursing Care

ATI MED SURG STUDY CASE: Key Concepts In Cardiac
And Respiratory Nursing Care


Key Terms/Concepts
 Left-Sided Heart Failure: A condition where the left ventricle cannot pump blood
effectively, leading to fluid accumulation in the lungs.
 Digoxin Toxicity: A potentially life-threatening condition caused by excessive
levels of digoxin, leading to symptoms like nausea, vomiting, and arrhythmias.
 Hypertensive Emergency: A severe increase in blood pressure that can lead to
organ damage, requiring immediate treatment.
 Acute Decompensation: A sudden worsening of heart failure symptoms, often
requiring urgent medical intervention.
 INR (International Normalized Ratio): A laboratory measurement used to
determine the clotting tendency of blood, particularly in patients on
anticoagulants like warfarin.
Key Medications
Medication Indication
Hydrochlorothiazide Diuretic used to treat hypertension and fluid retention.
Used to treat heart failure and atrial fibrillation by increasing the force of
Digoxin
heart contractions.
Lisinopril An ACE inhibitor used to treat high blood pressure and heart failure.
Anticoagulant used to prevent blood clots, particularly in patients with
Warfarin
atrial fibrillation.
Morphine Used to relieve pain and anxiety in patients with acute heart failure.
Key Assessment Techniques
 Vital Signs Monitoring: Regularly checking blood pressure, heart rate,
respiratory rate, and oxygen saturation to assess patient stability.
 Physical Assessment: Observing for signs of heart failure such as jugular vein
distention, crackles in lungs, and peripheral edema.
 Laboratory Tests: Monitoring electrolytes (e.g., potassium levels), complete
blood count (CBC), and renal function tests to guide treatment.
Key Complications
 Digoxin Toxicity: Symptoms include nausea, vomiting, confusion, and
arrhythmias.
 Acute Kidney Injury: Can occur in patients with chronic kidney disease,
especially when diuretics are used.
 Pulmonary Edema: Fluid accumulation in the lungs, leading to difficulty
breathing and decreased oxygenation.
 Dysrhythmias: Abnormal heart rhythms that can lead to decreased cardiac
output and perfusion.
Key Nursing Responsibilities

,  Patient Education: Instructing patients on medication adherence, dietary
restrictions, and recognizing signs of worsening heart failure.
 Monitoring for Side Effects: Keeping an eye on patients for adverse effects of
medications, especially anticoagulants and diuretics.
 Fluid Management: Assessing and managing fluid intake and output to prevent
overload in heart failure patients.
Facts to Memorize
 Normal platelet count: 150,000-400,000 platelets per microliter
 Normal sodium level: 135-145 mEq/L
 Normal WBC count: 4-11 x 10^3
 Normal potassium level: 3.5-5 mEq/L
 Normal peripheral pulse: +2
 Normal heart rate: 60-100 beats per minute
 Normal capillary refill: <2 seconds
 Normal oxygen saturation: 95-100%
 Normal respiratory rate: 12-20 breaths per minute
 Normal blood pressure: 120/80 mmHg
 Normal 24-hour urine output: 1100-1500 mL/day
 Therapeutic INR range: 2.0-3.0
 Normal INR: <1.2
 Normal PTT: 30-45 seconds
 Normal PT: 11-13.5 seconds
Reference Information
 Treatment for STEMI: PCI (Percutaneous Coronary Intervention)
 Treatment for NSTEMI: Anticoagulants, Antiplatelet, PCI if needed
 MONAS: Morphine, Oxygen, Nitro, Aspirin (4 baby aspirin), Statins
 D-dimer: Used with PE to see elevated levels indicating clot degradation
Concept Comparisons
Concept Hypertensive Urgency Hypertensive Emergency
Onset Slow onset (>24 hours) Quick onset (<24 hours)
Organ Signs of organ damage (e.g., decreased urine
No signs of organ damage
Damage output, change in LOC)
Outpatient treatment with follow-
Treatment IV medications, inpatient treatment
up 24-48 hours
Blood
BP > 180/110 BP > 180/110
Pressure




Heart Failure Management

, Treatment Success Indicators
 Successful treatment of left-sided heart failure is indicated
by warm skin and reduced fatigue, suggesting improved
cardiac output.
 Clear lung sounds and decreased heart rate are also signs of
effective treatment, indicating reduced pulmonary
congestion and improved hemodynamics.
 Weight loss and diuresis reflect effective fluid
management, crucial in heart failure management.
 Absence of chest pain and improved level of consciousness
indicate adequate perfusion and reduced myocardial strain.
Monitoring for Digoxin Toxicity
 The nurse must monitor potassium levels closely in patients
taking digoxin, as hypokalemia increases the risk of
toxicity.
 Blood pressure and heart rate are also important, but
potassium levels are critical for preventing digoxin-related
complications.
 GI function can be affected by digoxin toxicity, but it is not
the primary monitoring focus.
 Regular monitoring of electrolytes is essential in patients
on digoxin, especially in those with renal impairment.
Kidney Disease and Related Complications