TEST 3- Part 1 Flashcards
DEFINE:
VIRUS that impairs the functioning of a person’s immune system.
Human Immunodeficiency Virus (HIV)
How does HIV impaire our immune system?
The virus impairs/destroys CD4+ T cells
What is the primary function of CD4+ T cells in the immune system?
A) They produce antibodies to neutralize pathogens.
B) They directly destroy infected cells.
C) They alert the body’s immune system to the presence of an infection.
D) They enhance the activity of phagocytes.
C) They alert the body’s immune system to the presence of an infection.
Note: They don’t necessarily actively fight infections in the body, but the play a critical role in signaling and activating other parts of the immune system when an infection is present.
What actually leads to immunodeficiency?
Immunodeficiency occurs when the rate of destruction of CD4+ T cells exceeds the body’s ability to produce new, functional CD4+ T cells.
The number of detectable HIV viruses in the blood is called
“Viral Load”
2 main diagnostic tests we use to monitor HIV progression
- CD4+T
- Viral Load
CD4 and Viral Load will be ___ of each other
INVERSE
(OPOSITE)
The HIGHER the VIRAL LOAD the __.
LOWER the CD4- T cells
The number that holds more meaning for diagnosis is the ___.
CD4+T count.
A normal adult CD4+T cell count is
800-1200 cells/µL
What does a HIGH VIRAL LOAD combined with a LOW CD4+ T cell count indicate about a patient’s immune system
A) The immune system is effectively managing the infection with a high level of immune function.
B) The immune system is moderately compromised, but not yet severely affected.
C) The immune system is severely compromised, indicating progression to AIDS.
D) The immune system is in a state of complete recovery, showing an undetectable viral load.
C) The immune system is severely compromised, indicating progression to AIDS.
In the diagnosis of AIDS, what significance does a CD4+ T cell count BELOW 200 have?
A) It indicates that the patient has a mild immune deficiency.
B) It is one of the main criteria for diagnosing AIDS, reflecting severe immune system compromise.
C) It suggests the patient is responding well to antiretroviral therapy.
D) It means the patient has a high viral load but does not meet the criteria for AIDS.
B) It is one of the main criteria for diagnosing AIDS, reflecting severe immune system compromise.
What do viral load numbers indicate?
Viral load numbers provide a measure of disease progression OR control by indicating the amount of HIV in the blood.
What do HIGH viral load numbers typically indicate?
Higher viral load = MORE active disease and further disease progression.
What does it signify when an HIV patient’s viral load is “undetectable”?
An “undetectable” viral load signifies that the number of HIV copies in the blood is BELOW detectable levels, indicating that treatment is effective.
Which of the following statements accurately reflects the significance of an “undetectable” viral load in HIV treatment?
A) An “undetectable” viral load confirms that the HIV virus has been completely eliminated from the body.
B) An “undetectable” viral load indicates that the HIV virus is no longer present in the body and the patient is cured.
C) An “undetectable” viral load means the treatment is working and the virus is at very low levels, but it does not imply a cure.
D) An “undetectable” viral load suggests that the patient’s immune system has fully recovered from HIV.
C) An “undetectable” viral load means the treatment is working and the virus is at very low levels, but it does not imply a cure.
What impact does a HIGH viral load have on the risk of HIV transmission?
It increases the likelihood of HIV transmission to others.
If viral load is undetectable, it does not mean ___.
virus its not there.
- HIV Virus never goes away.
What 9 symptoms are commonly experienced by a patient newly infected with HIV, and when do they typically appear?
- fever
- swollen lymph nodes
- sore throat
- headache
- malaise
- nausea
- muscle and joint pain
- diarrhea
- skin rash
- Flu symptoms - 2 to 4 weeks AFTER transmission (acute infection)
What occurs during the Acute Infection stage of HIV, which typically happens 2-4 weeks after transmission?
The patient’s HIV viral load is high and there is a temporary drop in the CD4+ T cell count.
Why are HIV-infected patients at a greater risk of transmitting the virus during the Acute Infection stage?
due to HIGH viral load in their blood.
The interval between initial HIV infection and time of diagnosis of AIDS
(a period of time)
- Typically about 10 years if HIV is untreated
- Timeframe is highly individualized
What is the “Window Period” in HIV testing, and why does it occur?
The “Window Period” is the delay between initial HIV infection and the point when HIV can be detected by tests, which occurs because it takes time for the virus or antibodies to reach detectable levels.
Can clients infected with HIV transmit the virus to others during the asymptomatic stage, and what factors affect the likelihood of transmission?
Yes, clients infected with HIV can still transmit the virus to others during the asymptomatic stage, although the chance of transmission is generally lower because the viral load is typically lower during this stage.
What 5 symptoms are likely to occur as the CD4+ T cell count DECLINES in HIV patients?
- persistent fever
- frequent night sweats
- chronic diarrhea
- recurrent headaches
- severe fatigue.
CD4+T cell count above ___ usually results in a “healthy” immune system
500
What are 5 common opportunistic infections that are likely to occur when the CD4+ T cell count nears 200 or less?
know
- Oropharyngeal candidiasis (Oral Thrush)
- Shingles
- Kaposi Sarcoma (cancer on lining of blood vessels/lymph nodes)
- Oral Hairy Leukoplakia (side of tongue)
- Persistent Vaginal Candidal Infections
In addition to infections, what conditions are likely to occur when the CD4+ T cell count nears 200 or less?
- Wasting syndrome: Loss of more than 10% of ideal body mass.
- Cognitive changes / HIV Encephalopathy: Ranging from mild to severe, similar to dementia.
AIDS describes a ___ of the HIV illness
stage
What criteria would describe a patient who has progressed to AIDS?
A) The patient has a CD4+ T cell count above 200, without opportunistic infections, cancers, or wasting syndrome.
B) The patient has a CD4+ T cell count below 200, with opportunistic infections, cancers, or wasting syndrome.
C) The patient has frequent non-opportunistic infections and a CD4+ T cell count between 200-400.
D) The patient has a high viral load but does not meet the criteria for CD4+ T cell count or opportunistic infections.
B) The patient has a CD4+ T cell count below 200, with opportunistic infections, cancers, or wasting syndrome.
KNOW
Infections that occur more often or are more severe in people with weakened immune systems than in people with healthy immune systems
Opportunistic infections (OIs)
How do opportunistic infections in HIV-infected individuals differ from those in people with functioning immune systems?
A) They are less severe in HIV-infected individuals due to a stronger immune response.
B) They cause debilitating and life-threatening infections in HIV-infected individuals, whereas they usually do not cause severe illness in people with functioning immune systems.
C) They have no impact on the severity of illness in either group.
D) They are equally severe in both HIV-infected individuals and those with functioning immune systems.
B) They cause debilitating and life-threatening infections in HIV-infected individuals, whereas they usually do not cause severe illness in people with functioning immune systems.
Transmission occurs primarily by one of three modes:
- Sexual Contact
- Direct Blood Contact
- Mother-to-Child Transmission
Which types of bodily fluids can transmit HIV, and why are they significant?
HIV can be transmitted through semen, vaginal secretions, and blood because these fluids contain lymphocytes (WBC) with the virus.
know these three
Is HIV transmitted through blood transfusions?
No- UNLESS screening of blood wasn’t done properly.
Can an HIV test detect the virus immediately after infection?
No. Not immediately.
What is the “WINDOW PERIOD”
- After someone first gets HIV, there’s a gap of a few weeks where tests can’t yet detect it.
- This is because the body hasn’t had enough time to make enough antibodies to show up in a test.
- The interval SEVERAL weeks after infection, but prior to seroconversion, is referred to as “The Window Period”
What is SEROCONVERSION
- This is the stage that happens several WEEKS after infection when the body starts making enough antibodies to be detected by tests.
- Symptoms during this time, if they occur, are similar to the flu and include fever, rash, swollen lymph nodes, and aches.
- Person feels sick bc body is fighting infection- NOT bc viral load is spiking
What does HAART stand for and what does it involve?
- Highly Active Antiretroviral Therapy.
- HAART is a strategy for using ARV drugs in combination to achieve the best possible outcome in managing HIV.
Once initiated, HAART is continued ___.
indefinitely.
What is the primary mechanism by which drug therapy helps manage HIV?
- Drug therapy primarily helps manage HIV by decreasing viral REPLICATION.
know- missed on the test
Proper drug use can reduce viral LOADS by ___%
90-99%
Drugs will NOT block the transmission of HIV, instead ___.
they decrease viral LOAD which will lessen the chances that transmission would occur
What lab test do we check to see if the MEDS ARE WORKING?
VIRAL LOAD
ART stands for
Anti-Retroviral Drug Therapy
Main ART therapy med used
Tenofovir, TDF
5 Signs and symptoms of HIV drug therapy
- Lipodystrophy-uneveness loss of body fat
- Elevated Cholesterol levels
- Mood changes, depression, anxiety
- Elevated Blood Sugar and Diabetes
- Kidney, Liver, Pancreas Damage
-among more
“Wasting Syndrome”
Lipoatrophy
causes abnormal fat loss or distribution in certain areas of your body
Lipodystrophy
- An well-known opportunistic infection in HIV pts- usually pts are diagnosed with HIV bc of this infx.
- serious lung infection (pneumonia) that affects people with weakened immune systems.
Pneumocystis pneumonia (PCP)
(caused by bacteria: pneumocystis jirovecci)
S/S of Pneumocystis pneumonia
- fever
- dyspnea
- non-productive cough
When conducting an HIV assessment, what should be the primary focus for healthcare providers?
A. Identifying individuals at high risk for HIV
B. Treating individuals with advanced HIV symptoms
C. Focusing on individuals with a history of cancer
D. Prioritizing individuals with no risk factors
A. Identifying individuals at HIGH risk for HIV
What is PrEP?
(Pre-Exposure Prophylaxis)
* Its an ART regimen used as a PRE-EXPOSURE preventive treatment for individuals who are at HIGH RISK of contracting HIV.
Who is a “high-risk” individual contracting HIV.
- Gay men
- Transgender women
- Spouse with an HIV infected partner
- Drug users
- Possibly used for pregnant mothers
KNOW
Which of the following medications is typically used in Pre-Exposure Prophylaxis (PrEP) for HIV prevention?
A) Lisinopril and Hydrochlorothiazide
B) Tenofovir and Emtricitabine
C) Metformin and Sitagliptin
D) Atorvastatin and Ezetimibe
B) Tenofovir and Emtricitabine
(brand name: Truvada or Descovy)
know
What does PrEP work in the body?
It’s an non-strong ANTIVIRAL that stops HIV from taking hold and spreading throughout the body.
(doesnt cure)
How long does PrEP take to become effective?
7-20 days
What is PEP?
Post-exposure prophylaxis (PEP)
* a treatment to stop a person becoming infected with HIV AFTER it’s gotten into their body- USED FOR EMERGENCY SITUATIONS, not regular use.
When must Post-Exposure Prophylaxis (PEP) be started after a possible exposure to HIV to be effective?
A) Within 7 days
B) Within 48 hours
C) Within 72 hours
D) Within 5 days
C) Within 72 hours
What is the typical duration of treatment when taking Post-Exposure Prophylaxis (PEP) for HIV prevention?
A) 10 days
B) 21 days
C) 28 days
D) 45 days
C) 28 days
What percentage can proper HIV treatment (ART) reduce the risk of transmission from a mother to her newborn?
A) From 50% to 25%
B) From 25% to less than 2%
C) From 30% to 10%
D) From 25% to less than 5%
B) From 25% to less than 2%
How does a nurse’s self-awareness of personal beliefs and values influence the care provided to individuals living with HIV?
A) It helps the nurse strictly adhere to clinical protocols
B) It ensures the nurse avoids any emotional connection with patients
C) It enables the nurse to deliver unbiased, empathetic care while maintaining ethical boundaries
D) It allows the nurse to adjust care plans based on their own personal opinions
C) It enables the nurse to deliver unbiased, empathetic care while maintaining ethical boundaries
What kind of infection control is used for HIV patients?
STANDARD PRECAUTION
* hand hygiene
* use of mask, gloves, gown and goggles when applicable
What is the Endocardium?
- The endocardium is the innermost layer of the heart.
- It lines the inside of the heart chambers and covers the heart valves.
- Think of it as a smooth, protective coating that helps blood flow easily inside the heart.
- It also plays a role in the heart’s electrical system, which controls your heartbeat.
Infection of the endocardial layer of the heart
INFECTIVE ENDOCARDITIS (IE)
IE is almost always caused bY
bacterial infection
2 most common organisms to cause IE are
- Staphyloccus aureus (skin)
- Streptoccus viridians (mouth, resp, GI, GU tracts)
What are the primary sites where bacteria establish infection in endocarditis?
Bacteria need these 2 things
- Previously damaged areas of the endocardium
- Artificial surfaces (e.g., prosthetic valves)
(these creates a rough surface making it easy for bacteria to latch on)
know
Irregular growths made of bacteria and cell pieces (fibrin, leukocytes, platelets) form ___.
vegetations
Pieces of the vegetations that break off and enter the systemic circulation
Emboli
Systemic emboli are going to move ___ in the circulation.
DISTALLY- with the flow of blood, not backwards!! –
causing blockages in arteries downstream from where they broke loose.
Main 3 symptoms for Infective Endocarditis
- Fever
- murmurs **
- Clubbing of fingers
know
Further assessment for endocarditis should include
listening to heart sounds to assess for NEW or WORSENING MURMURS (wooshing sounds)
What signs might be present if embolization has occurred?
The clinical signs depend on the organ or tissue affected by the embolus.
What patients are at higher risk for INFECTIVE ENDOCARTDITIS?
- Aging ( > 50% of older people have calcified aortic stenosis)
- IVDA (Intravenous Drug Abuse)
- Use of prosthetic valves
- Intravascular (IV) devices (Central lines, Implanted ports, etc.)
- Renal Dialysis
- Previous cardiac disease
know
Know the 6 signs of a STROKE
BE FAST
* Balance difficulties
* Eyesight changes
* Face weakness
* Arm weakness
* Speech difficulties
* Time- Call 911
Another term for Stroke
CEREBRAL VASCULAR ACCIDENT
S/S if vegetation is present ONLY on the LEFT SIDE of heart
- Petechiae
- Splinter Hemorrhages
- Osler’s Nodes
- Janeway’s Lesions
- Roth’s Spots
know
Small areas of bleeding under fingernails or toenails.
What am I?
Splinter Hemorrhage
(Damage to capillaries caused by small emboli)
Flat, painless red spots on palms and
soles
Janeway Lesions
Painful, pea-sized, red or purple
lesions on fingers or toes
Osler’s Nodes
Hemorrhagic retinal lesions
Roth’s Spots
How will we diagnose Infective Endocarditis?
2 main DX
- Blood cultures (most likely positive)
- Echocardiography
know
IE EKG findings would most likely read
afib or heart blocks
Tx for IE will include
- Antibiotics (usually Long-term)
- Fungal infective endocarditis (treat with anti-fungals)
- Associated fever: treated with fluids, rest, and acetaminophen
- replace infected prosthetic valves- surgically
Do we give Anticoags for IE?
No- it practically does nothing.
* will NOT break down vegetation
* bacterial clump is NOT a blood clot
A patient with a history of Infective Endocarditis (IE) is being discharged. What education should the nurse provide to ensure the patient prevents future complications?
List 6
- Avoid contact with individuals who are sick to reduce the risk of infection.
- Importance of communicating hx of IE to future healthcare providers (MD’s, DDS, etc)
- Monitor for s/s of infection such as fever, heart failure, or emboli.
- Teach importance of adherence to treatment regimen
- Schedule follow-up echocardiograms after completing the course of antibiotics.
- Possible bedrest or acitivity limitations
A condition caused by inflammation of the pericardial sac (the pericardium), which may occur in an acute or chronic form.
Pericarditis
What symptom do patients most often present with in Acute Pericarditis
frequent, severe, sharp chest pain
- bc of inflammation, the pericardium layers rub on each other or other surrounding parts causing the pain.
How to alleviate pain for patients with Acute Pericarditis?
Sitting up and leaning forward often relieves pain
How do you differentiate Pericarditis and MI?
Nothing alleviates pain for MI
A patient presents with chest pain, and the nurse suspects pericarditis. What is the hallmark finding that would support this diagnosis?
A. Elevated blood pressure
B. Pericardial friction rub
C. Decreased breath sounds
D. Jugular vein distention
B. Pericardial friction rub
scratching, grating, high-pitched sound
know
A patient is being assessed for chest pain, and the nurse is trying to differentiate between pericardial friction rub and pleural friction rub. Which statement correctly describes a key difference between the two types of friction rubs?
A. A pericardial friction rub will disappear when the patient holds their breath, while a pleural friction rub will persist.
B. A pleural friction rub will disappear when the patient holds their breath, while a pericardial friction rub will persist.
C. Both pericardial and pleural friction rubs will disappear when the patient holds their breath.
D. Neither pericardial nor pleural friction rubs will change when the patient holds their breath.
B. A pleural friction rub will disappear when the patient holds their breath, while a pericardial friction rub will persist.
(pleural = lungs ; pericardial = heart)
EKG finding on Pericarditis
Diffuse (all over) ST Segment ELEVATIONS
- ST Segment should be isoelectric
(troponin levels high)
Abnormal collection of fluid in the pericardial sac
What am I?
Pericardial Effusion
FIRST step to treat Pericardial effusion?
Treat whatever is causing the pericardial effusion FIRST
(Example: if pericarditis is causing p.effusion, treat pericarditis first)
Compression of the heart that results as pericardial fluid volume continues to increase. Restricts the heart from stretching.
What am I?
Cardiac Tamponade
(ALWAYS a medical emergency- can kill pt)
S/S of cardiac tamponade
- Patient may report chest pain
- confused, anxious, and restless
- tachypnea
- tachycardia
- JVD
Beck’s Triad= Distant/muffled heart sounds, JVD, Hypotension
As a nurse, how would you help your pt alleviate Cardiac Tamponade s/s?
Nurse arent able to do anything for Tamponade. We need to get Dr involved so they can perform PERICARDIOCENTESIS.- surgically remove fluid
What 4 meds are available to manage/treat Pericarditis
Management is aimed at treating underlying cause
- NSAIDS – used to control pain and inflammation
- Indomethacin, aspirin, ibuprofen
-
Colchicine – anti-inflammatory drug often used for gout – used for recurrent
pericarditis -
Corticosteroids – used if cause is rheumatologic or autoimmune
** Avoided if possible due to multiple side effects* - its an immunosupressant - Antibiotics- treats bacterial pericarditis
What are the FIRST meds you will use for Pericarditis?
NSAIDs and Colchecine
You are caring for a patient with pericarditis. Which of the following interventions are most appropriate for managing their condition?
Select all that apply:
A. Position the patient in a high Fowler’s or tripod position to facilitate pain relief and optimize respiratory mechanics.
B. Initiate oxygen therapy (if indicated) and closely monitor pulse oximetry and arterial blood gases (ABGs) to assess and manage oxygenation status.
C. Implement strategies for pain and anxiety control, including instructing the patient to sit up and lean forward and applying chest splinting techniques as necessary.
D. Educate the patient on their condition and treatment plan.
E. Advise the patient to lie flat to maximize lung expansion, despite the risk of exacerbating pain and discomfort.
A. Position the patient in a high Fowler’s or tripod position to facilitate pain relief and optimize respiratory mechanics.
B. Initiate oxygen therapy (if indicated) and closely monitor pulse oximetry and arterial blood gases (ABGs) to assess and manage oxygenation status.
C. Implement strategies for pain and anxiety control, including instructing the patient to sit up and lean forward and applying chest splinting techniques as necessary.
D. Educate the patient on their condition and treatment plan.
NOT E.
Location of pericarditis pain
- Precordium or left trapezius ridge
* has a sharp, pleuritic quality that increases with inspiration
- Precordium or left trapezius ridge
Diffuse (entire) inflammation of the myocardium (heart muscle)
What am I?
Myocarditis
Myocarditis is often present concurrently with what two other conditions
pericarditis and endocarditis
(s/s vary for myocarditis)
Myocarditis:
EARLY cardiac signs mimic ___.
Pericarditis
* pleuritic chest pain, fricition rub, effusion
Late cardiac signs mimic ___.
Heart Failure
6 S/S of Heart failure
- S3/S4 heart sound
- crackles
- jugular venous distention
- syncope
- peripheral edema
- angina (chest pain)
Specific MYOCARDITIS diagnostic
Endo-Myocardial Biopsy
* Invasive procedure and therefore accompanied by risks
Is there a NON-INVASIVE diagnostic for Myocarditis?
Nope
What do treatment and interventions for myocarditis primarily focus on?
managing the signs and symptoms of HEART FAILURE.
Drug therapy for Heart Failure (and myocarditis) includes
- ACE-Inhibitors: end in -pril
- Beta-blockers: end in -olol
- Diuretics: loop, thiazide, k+ sparing
- Nitrates: nitroglycerin vasodilator
- Positive Inotropes
How does the stage of a patient’s HEART FAILURE affect their medication regimen?
The stage of a patient’s heart failure dictates which medications they are prescribed, as treatment is tailored to the severity of their condition
An inflammatory process that can develop as a complication of inadequately treated strep throat or scarlet fever.
What am I?
RHEUMATIC FEVER
It is an autoimmune response to the bacteria Streptococcus pyogenes. After a strep throat infection, the immune system can mistakenly attack healthy tissues, particularly in the heart, leading to inflammation.
Strep throat and scarlet fever are caused by an infection with ___ bacteria
streptococcus
Rheumatic fever can cause inflammation and physical changes affecting the heart. Which of the following statements is correct regarding its impact on the heart?
A. Rheumatic fever only affects the outer layer of the heart.
B. Rheumatic fever results in inflammation and physical changes that can impact all layers of the heart.
C. Rheumatic fever exclusively impacts the myocardium without affecting other layers.
D. Rheumatic fever causes changes limited to the pericardium and does not affect the myocardium or endocardium.
B. Rheumatic fever results in inflammation and physical changes that can impact ALL layers of the heart.
What is Pancarditis?
Inflammation that affects all three layers of the heart: the endocardium, myocardium, and pericardium.
How does Rheumatic Heart Disease develop, and what heart layers are involved?
- Rheumatic Heart Disease develops from inflammation caused by ALL 3: endocarditis, myocarditis, and pericarditis **
- It affects ALL layers of the heart (pancarditis) and often leads to chronic valve damage.
What 2 functions are impaired once the heart has fibrous scar tissue
- Contractility: Reduced pumping ability → risk of heart failure.
- Compliance: Impaired relaxation of heart muscle → leads to diastolic dysfunction.
Is Rheumatic heart Disease cureable?
No- damage is already done.
Once a patient has Rheumatic Heart Disease, what meds will they be on?
Antbx - lifetime
and
anti-inflammatory agents
How is valvular heart disease classified?
- Based on affected valve(s): mitral, tricuspid, aortic, pulmonic
-
3 Types of valvular dysfunctions:
Stenosis (narrowing)
Regurgitation (leaking)
Prolapse (improper closure)
Define: Constriction or narrowing of the opening
(valves can’t open)
Stenosis
How does valve stenosis affect pressure in the heart?
- Causes a pressure difference on each side of the stenotic valve.
- Pressure on both sides is usually equal.
- Higher pressure builds up behind the valve where blood is flowing from (ventricles)
Define:
* Incomplete closure of valves- can’t close
* Also ocalled “incompetence” or “insufficiency”
Regurgitation
What are the effects of regurgitation on blood flow in the heart?
- Backward flow of blood through the valve.
- The heart has to re-pump the same blood multiple times.
Define:
* Valves that are often referred to as “floppy”
* valves that have “bulged” backwards
Prolapsed valves
Isn’t an opening or closing problem, but a general change in the overall shape/structure/function of the valve (Think of this as the valve has stretched out and it is now not sitting in the space where it shouldnt be)
How does the degree of prolapse affect management and symptoms?
- Severity of symptoms is influenced by the degree of prolapse.
- Management: managed medically or require surgical intervention
- Same concept applies to all valvular issues
What is Mitral Valve Stenosis
- The valve leaflets (or cusps) become thickened, stiffened, or fused together, reducing the size of the opening through which blood flows.
- This constriction impairs the normal flow of blood from the left atrium to the left ventricle.
What are the effects of MITRAL valve stenosis? (left side valve)
- Decreased blood flow from ATRIUM into the left VENTRICLE.
- Left atrium dilates and may hypertrophy.
- Pulmonary congestion and increased pressures.
- Increased risk for atrial fibrillation (Afib).
What is the primary symptom of Mitral Valve Stenosis?
Dyspnea on exertion
(exertion: shortness of breath occurs during physical activity or exercise.)
Why does dyspnea on exertion occur with mitral valve stenosis?
- Decreased lung compliance: Stiffer lungs reduce the ability to expand and contract, restricting airflow.
- Decreased cardiac output: Reduced blood flow from the heart means less oxygenated blood reaches muscles, causing shortness of breath during activity.
Mitral Valve Stenosis:
It’s Chronic stage may eventually manifest as s/s of ___ sided heart failure.
Right sided heart failure
- as fluid continues to build up from the lungs into RIGHT VENTRICLE.
How can Mitral valve stenosis (left side valve) lead to symptoms of RIGHT-sided heart failure?
Mechanism:
- Fluid buildup: Increased pressure in the lungs (from the left side) causes fluid to back up into the right ventricle.
- Symptoms: This can lead to swelling in the legs, distended neck veins, and fluid accumulation in the abdomen.
Cardiac Output
(review)
- Is a measure of how efficiently the heart is pumping blood throughout the body PER MINUTE
- It’s crucial for ensuring that all tissues and organs receive adequate oxygen and nutrients.
Formula for Cardiac Output (CO)
CO = Stroke Volume (SV) × Heart Rate (HR)
- Stroke Volume (SV): The volume of blood ejected by the left ventricle with each heartbeat.
- Heart Rate (HR): The number of heartbeats per minute.
What happens when the left atrium and left ventricle work harder to preserve cardiac output?
Over time, this increased effort can lead to HEART FAILURE!!!
Mitral Valve PROLAPSE:
What type of chest pain might be present if symptomatic?
Atypical Chest Paint
(refers to chest discomfort that does not fit the classic description of angina (chest pain) or myocardial infarction)
Is it okay to give anti-anginals for Mitral valve prolapse pain?
No- Does NOT respond to anti-anginals
Patient teaching for Mitral Valve PROLAPSE
List 3
- Staying hydrated
- Regular Exercise
- Avoid Caffeine
Causes obstruction of blood from Left ventricle to the Aorta
What am I?
Aortic Valve Stenosis
How does aortic valve stenosis affect the heart’s structure and function?
- Structure: Causes Left Ventricular Hypertrophy (thickening of the heart’s left ventricle).
- Function: Leads to Increased Myocardial Oxygen Demand (the heart requires more oxygen due to the increased workload).
What is the “Classic Triad” of symptoms for AORTIC valve stenosis?
SAD:
* Syncope (fainting)
* Angina (chest pain)
* Dyspnea on exertion (shortness of breath with activity)
Aortic Valve REGURGITATION results in 3 things
- Dilated / Hypertrophied Left Ventricle
- Decreased CO
- CHF
Main S/S of Tricuspid AND Pulmonic valve disease
(RIGHT SIDED OF HEART)
“Right sided Heart Failure”
Problems with Right side of heart mimics ___ heart failure s/s
RIGHT
Problems with LEFT side of heart mimic ____ heart failure s/s
LEFT side heart failure
What is valvular heart disease?
- Involves: Any of the four heart valves (aortic, mitral, tricuspid, pulmonic).
- Impact: Affects the heart’s ability to pump blood efficiently and can have significant clinical consequences.
Main diagnostic study for Valvular Heart Disease
Echocardiogram
(reveals valve structure, function, muscle thickness, and heart chamber size)
Valvular heart disease conservative therapy would include
- Prevention: rheumatic fever, endocaditis
- Medication tx: Rx for heart failure
Valve Replacement:
Prosthetic heart valves may be __ or ___.
Mechanical or biological
How long will a patient have a MECHANICAL prosthetic heart valve?
for entire life
How long will a patient have a BIOLOGICAL prosthetic heart valve?
5-10 - yrs since they tend to stiffen and calcify
Mechanical prosthetics require what type of meds?
anticoagulations- LONG TERM
(no way around them)
know
Why do we use blood thinners for Mechanical prosthethics valves?
- Due to its synthetic material.
- Can not risk anything sticking to that material.
What is the ONLY blood thinner used for Mechanical Prosthetics?
Warfarin- the only one that works
* Normal range for INR = 1
INR levels for a MECHANICAL prosthetic valves should be
3-4
The BIOLOGICAL prosthetics come from
animal or human donors
What blood thinners will pts with a BIOLOGICAL prosthetic valve be on?
NONE- do not require anticoagulant therapy
Another word for CARDIOMYOPATHY?
HEART FAILURE
List the 3 types of Cardiomyopathies (heart failure)
- Dilated cardiomyopathy
- hypertorphic cardiomyopathy
- Restrictive cardiomyopahty
What am I:
- Englarged heart chambers WITHOUT associated thickening of heart muscle walls as seen in heart failure
- Heart muscle fibers are impaired by diffuse (widespread) inflammation
- think of it as SYSTOLIC heart failure
Dilated Cardiomyopathy
know
Review:
What is Systolic Heart Failure
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- also known as heart failure with reduced ejection fraction or HFrEF
- The heart’s left ventricle cannot contract effectively, leading to a reduced ejection fraction (the percentage of blood pumped out of the left ventricle to the rest of the body with each heartbeat).
What is a unique consideration for clients with Dilated Cardiomyopathy?
know
- Blood Flow: Slows down (stagnates), increasing risk for clots/strokes.
- Management: Clients may need to be on anticoagulants unless contraindicated.
know
Dilated Cardiomyopathy mimics what EKG
AFib
Dilated Cardiomyopathy are at great risk for:
clot formation and emboli
* (due to stasis of blood flow THROUGHOUT the heart- not just atria)
Left ventricular hypertrophy WITHOUT ventricular dilation (enlarged and stretched)
* Heart walls are enlarged but NOT stiff
* Can block aortic valve due to thickening
Deadliest of them all
Hypertrophic Cardiomyopathy
- Systolic function is normal
- Diastolic function is impaired
- Ventricles are resistant to filling- stiff ventricle wall
- Cardiac output fails
RESTRICTIVE CARDIOMYOPATHY
For Hypertrophic and Restrictive Cardiomyopathy – Think of these more like
Diastolic Heart Failure
* also called heart failure with preserved ejection fraction (HFpEF)
Unique consideration for Hypertrophic cardiomyopathy
client/family teaching
regarding Sudden Cardiac Death
Diastolic Heart Failure (review)
- Occurs when the heart’s ventricles become stiff and are unable to relax properly during diastole (the filling phase).
- This limits the amount of blood the ventricles can hold and pump out, even though the heart’s pumping ability (ejection fraction) remains normal.
- leading to reduced overall blood volume being pumped to the body.
- Because the ventricles can’t expand properly, blood backs up into the lungs or veins, causing fluid buildup.
What am I?
Hypertrophic Cardiomyopathy
What am I?
Dilated Cardiomyopathy
What am I?
- Stiff heart muscle (rock hard muscle)
Restrictive Cardiomyopathy
Go back to the CAD PP
Review!!!!!
medical procedure used to diagnose and treat certain heart conditions
Cardiac catheterization
If you are accessing a VEIN, where in the heart will it en up in?
Right side of the heart.
Right Atrium/Right ventricle
If you’re accessing an ARTERY, where in the heart will end up in?
LEFT side of the heart
In the cath lab, are patients awake?
- Not fully awake, but in a consicious sedation.
- Pt will be proteting their airway
What meds are used for these conscious sedations?
Benzos, opioids (Versed)
3 Timeframes for coronary tx (PCI)
- Emergent
- Urgent
- Scheduled
For patients with confirmed MI who are in crisis, what is the FIRST line of tx?
Emergent PCI (percutaneous coronary intervention)
* Straight to CATH LAB
* minimall invasive procedure
* heart treatment to open blocked blood vessels.
* Prof will refer these as CARDIAC CATHS in tests
Goal (time frame) to open blocked artery once pt arrives in facility
90 mins
True clot busters
Thrombolytics
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- Requires prompt intervention (within 12-72 hours)
but may allow for time to optimize patient condition before going to cath lab (NSTEMI, Unstable Angina)
Urgent PCI
Outpatient or inpatient procedure (Positive
stress test, unexplained chest pain)
Scheduled PCI
Urgent PCI Preparation
- started on Heparin gtt: prevent further clots
- Nitroglycerin gtt: alleviate chest pain- check BP before!!!!!
- IV fluids (Before and/or after procedure)
-Prepare/flush kidneys from contrast - Hold Metformin for DM pts- 48 hrs before & after (oral diabetic med) **
-interacts with IV contrast - NPO after midnight
PCI PRE-Procedure Nurse duties
List 8
- 2 IV lines - pts at risk to deteriorate
- Mark peripheral pulses/establish baseline
-ALL OF THEM - Prep groin/wrist sites
- Continuous Telemetry
- Consents - Drs responsibility
- Foley catheter- ONLY if needed
- Heparin/Nitro/ drips , Aspirin
- TALK TO THE PATIENT AND FAMILY MEMBERS!! **
-Post expectations: laying FLAT for 6hrs, report bleeding , pain
POST-PCI Nursing Care
-
Keep affected limb straight/Flat-several hrs
-prevent damage/bleeding - Maintain bedrest or activity level per physician orders
- HOB needs to be elevated no more than 10 degrees (femoral approach)
- Check peripheral pulses, catheter insertion site, color and sensation of affected extremity per orders (ie. Q15 x4, Q30x2, Q1HR x 4) (Neurovascular checks 6 Ps - KNOW! **
- Frequently observe puncture site for hematoma, bleeding
- Monitor VS and EKG
-
Closely monitor for chest pain- make sure no re-blockage, monitor CLOSELY**
-(normal/”expected” discomfort vs. reperfusion vs. tamponade/STEMI)
6P’s will be checked on what extremitis after a PCI?
ONLY on the extremity where th sheath was inserted!
What if your 6 P’s are not normal from the baseline. What will you do next?
Call the provider, make sure all other assessments are done prior.
Is it normal for patients to feel some DISCOMFORT after cath lab procedure?
Yes, Some discomfort is normal.
true chest pain- is NOT!
What is this called?
Trans-Radial Approach
- used instead of a FEMORAL sheath.
When pulling a sheth out, you hold PRESSURE for how long?
15 mins or more.
What med should ALWAYS be at the bedside when pulling out a sheath and why?
ATROPINE
(anticholinergic-blocks acetylcholine)
* due to pressure on sheath wound, may cause pt to vagal response and lead to SYMPTOMATIC BRADYCARDIA
When removing a sheath patients can have a ___ response.
Vagal response.
- manipulation or pressure near the femoral artery can trigger a reflex involving the vagus nerve INDIRECTLY.
If patient vagus nerve is triggered, what heart symptom can patient start having?
SYMPTOMATIC bradycardia
- with symptoms- know how to treat
How would you treat SYMPTOMATIC bradycardia
- Assess
- O2
- IV access to Atropine- 0.5 mg IV push, Q3-5, max dose of 3 mg.
OR - Dopamine infusion (for hypotension and bradycardia)
- Epinephrine infusion (to increase heart rate and blood pressure)
know
PCI complications:
Most serious complication is
dissection of the newly dilated CORONARY artery
* the mechanical stress exerted by the balloon or other devices used to open the artery can cause a tear in the artery’s inner lining (intima).
* This tear creates a false passage or flap within the artery, called a dissection.
When coronary arteries rupture, what can occur?
- tamponade **
- ischemia- no blood to organs
- infarction
- decreased CO
- possibly death- pts can CODE very quickly!!