CARDIOVASCULAR

Pulmonary Bleeding (Hemoptysis)

  • Pathway
    • Right ventricle pumps de-oxygenated blood ➜ pulmonary artery ➜ lungs.
    • If a patient is bleeding into the lung parenchyma or airway, blood exits by coughing/spitting.
  • Classic signs & symptoms
    • Cough productive of bright-red blood or blood-tinged sputum.
    • Dyspnea, tachypnea, accessory-muscle use.
    • Possible gurgling or crackles on auscultation (fluid + air mixing).
    • Patient often frightened/anxious ➜ provide calm explanations.
  • Common etiologies reviewed
    • Infectious: pneumonia, tuberculosis.
    • Chemical/irritant inhalation: chlorine gas, sulfur dioxide, etc.
    • Pulmonary edema with frothy, pink sputum when fluid volume is high (“the top looks like that” ➜ thick, unmixed mucus layer observed in specimen cups).

Empathic Patient-Centred Care

  • Mentally rehearse the clinical scene to avoid surprise: “imagine what is behind the curtain.”
  • Put yourself in the patient’s role—anticipate questions and fears.
  • Speak at the patient’s level; translate medical jargon.
  • Reinforce that clinicians must be prepared so confidence shows in verbal & non-verbal communication.

Cardiac Valve Anatomy & Physiology

  • Total of 4 one-way valves (“they always want one-way flow”):
    • Right heart: Tricuspid (atrioventricular), Pulmonic (semilunar).
    • Left heart: Mitral/Bicuspid (atrioventricular), Aortic (semilunar).
  • Valve function principle: permit forward flow when upstream pressure exceeds downstream pressure, prevent retrograde flow (conceptual formula \Delta P = P{upstream} - P{downstream}).

Valve Pathologies

  • Stenosis
    • Definition: thickening/calcification ➜ narrowed orifice, valve cannot open as wide as it should.
    • Hemodynamic consequence: pressure overload proximal to the valve.
  • Insufficiency / Regurgitation
    • Definition: incomplete closure ➜ backward leakage.
    • Hemodynamic consequence: volume overload in the chamber that receives the back-flow.
  • Assessment/teaching points
    • Review diagnostic studies, planned interventions, long-term care, follow-up schedules.
    • Stress to patients the importance of keeping all appointments with cardiology, surgery, rehab, etc.

Post-Valve-Replacement Considerations

  • Prosthetic (mechanical or bioprosthetic) valves = foreign surface ➜ infection risk.
  • Dental or invasive procedures within the first 1\text{ year} require prophylactic antibiotics.
    • Patient must inform dentist/other providers of their valve.

Cardiac Rehabilitation

  • Goal: strengthen weakened myocardium and restore function as close to baseline as possible.
  • Components taught
    • Supervised exercise programs.
    • Risk-factor modification (diet, smoking cessation, stress management).
    • Education about specific heart condition, warning signs, and emergency plan.
  • Facilities/examples: large academic centers (e.g., UCA) often have outpatient rehab.

Rheumatic Fever ➜ Rheumatic Heart Disease (RHD)

  • Etiology chain
    1. Untreated/undertreated Group A β-hemolytic Streptococcus (strep throat, other URI).
    2. ⇒ Rheumatic fever (autoimmune reaction).
    3. ⇒ Progressive valvular damage, most commonly of mitral valve, producing stenosis and/or regurgitation.
  • Key teaching for parents/caregivers
    • Complete the entire antibiotic course.
    • Attend follow-up visits to confirm eradication of bacteria (repeat cultures).
    • Emphasize that residual bacteria can remain dormant and “rear its ugly head” years later.

Antibiotic Therapy Principles

  • Culture & Sensitivity (C&S) Report
    • Columns labeled S (Sensitive), R (Resistant).
    • Clinicians choose agents marked S.
  • Timeline: C&S can take several days (organism must grow), hence follow-up is critical.
  • Adverse effects teaching
    • Common GI upset: continue drug, take with food if appropriate.
    • Serious reactions (rash, itching, difficulty breathing) ➜ stop medication immediately & contact provider.

Study/Exam Success Strategies (Instructor’s Pep Talk)

  • “Train your mind”: decide you will succeed, expect excellence.
  • Share resources (notes, podcasts) with classmates to lighten workload.
  • Create separate group chats for each module/topic to stay organized.
  • Cover ~50 disorders; break them into manageable study sessions.
  • Avoid “winging it” on exam day—consistent preparation is key.

Practical / Departmental Collaboration

  • Know your institution’s departments and referral pathways (cardiology clinic, rehab, infectious-disease service, etc.).
  • Collaborate early to streamline patient care and ensure all specialties reinforce the same education points.

Ethical & Professional Implications

  • Incomplete treatment or poor follow-up of infections can lead to severe, life-long consequences (RHD) ➜ duty to educate.
  • Non-verbal cues matter: do not let shock or frustration appear on your face in front of patients.
  • Empower patients—provide clear reasons for every recommendation so adherence is based on understanding, not fear.