cardiovascular emergencies Flashcards

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1
Q

Aspirin: Indication

A

New onset chest pain suggestive of acute myocardial infarction. Sign and symptoms suggestive of recent cerebrovascular accident.

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2
Q

Aspirin: class

A

platelet inhibitor, anti inflammatory agent

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3
Q

Aspirin: contraindication

A

Hypersensitivity and is relatively contraindicated in patients with active ulcer disease or asthma.

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4
Q

Aspirin: Dosage and administration

A

81mg-325mg PO

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5
Q

Largest artery in the body:

A

The aorta begins at the top of the left ventricle, the heart’s muscular pumping chamber. The heart pumps blood from the left ventricle into the aorta through the aortic valve. Three leaflets on the aortic valve open and close with each heartbeat to allow one-way flow of blood

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6
Q

Layers of the heart:

A

Pericardium: the membrane enclosing the heart

Fibrous Pericardium: external layer of the pericardium, consisting of dense fibrous tissue.

Parietal Pericardium (parietal layer) : It lines the inner side of the fibrous pericardium and is difficult to separate from the structure.

Space: the potential space between the parietal and visceral layers of the pleura

Visceral Pericardium ( visceral layer) : It adheres to the cardiac surface.

Myocardium (muscle layer)

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7
Q

Nitroglycerin: class

A

Vasodilator

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8
Q

Nitroglycerin: Indications

A

Acute angina pectoris, ischemic chest pain, hypertension, CHF, and pulmonary edema

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9
Q

Nitroglycerin: Contraindications:

A

Hypotension, hypovolemia, syncope, reflex tachycardia, flushing, nausea, vomiting, diaphoresis, and muscle twitching

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10
Q

Nitroglycerin: Dosage and administration:

A

Adult: Tablets: 0.4 mg SL; may repeat in 5 minutes to a maximum of 3 doses
Adult: Paste: 1/2 - 1 inch topical
Peds: not recommended

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11
Q

Tricuspid valve:

A

This valve is located between the right atrium and the right ventricle.

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12
Q

Pulmonary valve

A

The pulmonary valve is located between the right ventricle and the pulmonary artery.

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13
Q

Mitral valve

A

This valve is located between the left atrium and the left ventricle. It has only 2 leaflets.

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14
Q

Aortic valve

A

located between the left ventricle and the aorta.

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15
Q

Systolic blood pressure: definition

A

Is the amount of pressure that blood exerts on vessels while the heart is beating.

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16
Q

Pulmonary arteries:

A

Begins at the right side of the heart and carries oxygen- depleted blood to the lungs

17
Q

Right Coronary artery filling:

A

supplies blood to the right atrium and right ventricle and, in the most people, the bottom part, or inferior wall, of the left ventricle.

18
Q

Left coronary artery filling:

A

supplies blood to the left atrium and left ventricle and divides into two major branches, just a short distance from the aorta.

19
Q

Ventricular Tachycardia:

A

This rhythm usually appears on the monitor as a wide, regular, and very rapid rhythm. Ventricular tachycardia is a poorly perfusing rhythm; patients may present with or without a pulse. Most patients are unconscious and pulseless with this rhythm and defibrillation is needed to ‘stun’ the heart so that the primary pacemaker (usually the S-A node) can take over.

20
Q

Ventricular Fibrillation:

A

The heart quivers ineffectively and no blood is pumped out of the heart. On the monitor, v-fib will look like a frantically disorganized wavy line.

21
Q

Aortic dissection

A

a serious condition in which the inner layer of the aorta, the large blood vessel branching off the heart, tears.

22
Q

s/s Aortic dissection

A
  • Sudden severe chest or upper back pain, often described as a tearing, ripping or shearing sensation, that radiates to the neck or down the back
  • Sudden severe abdominal pain
  • Loss of consciousness
  • Shortness of breath (dyspnea)
  • Sudden difficulty speaking, loss of vision, weakness or paralysis of one side of your body, similar to those of a stroke (dysarthria)
  • Weak pulse in one arm or thigh compared with the other
  • Leg pain/Leg paralysis/ difficulty walking
23
Q

Arterioles:

A

anatomy any of the small subdivisions of an artery that form thin-walled vessels ending in capillaries

24
Q

S/s CHF

A
  • The patient finds it easier to breathe when sitting up
  • the patient is agitated
  • Chest pain may or may not be present.
  • The patient often has distended neck veins
  • swollen ankles from dependent edema (backup of fluid).
  • accessory breathing muscles of the neck and ribs, reflecting the additional hard work of breathing.
  • Skin is usually pale or cyanotic and sweaty
  • (crackles)
25
Q

S/s of cardiogenic shock:

A
  • first sign - anxiety or restlessness
  • “air hunger.”
  • pale, cool, clammy skin
  • is greater than 120 beats/min weak ad irregular
  • rapid and shallow breathing, nausea and vomiting, and a decrease in body temperature.
  • late sign : A systolic blood pressure less than 90mg hg is easy to recognize
26
Q

A mastectomy

A

surgery to remove a breast. Sometimes other tissues near the breast are also removed

27
Q

Left-sided heart failure:

A

is a reduction in the output from the left ventricle. The pressure in the left atrium increases as the oxygen-rich blood from the lungs are backed up since the left ventricle is not pushing out this blood fast enough or efficiently.

28
Q

Right-sided heart failure:

A

is a reduction in the blood output from the right ventricle. The pressure in the right atrium may be decreased, normal or increased depending on the return of blood from the rest of the body.

29
Q

Left-sided heart failure: s/s

A
  • Pitting edema (legs, hands)
    Mild to moderate
- Fluid Retention 
Pulmonary edema (fluid in lungs) and pleural effusion (fluid around lungs)
  • Organ enlargement
    Heart

-Neck veins
Mid to moderate raised jugular venous pressure

-Shortness of breath
Prominent dyspnea. Paroxysmal nocturnal dyspnea .

  • Gastrointestinal
    Present but not prominate.
30
Q

Right-sided heart failure: s/s

A
  • Pitting edema (legs, hands)
    Moderate to severe
  • Fluid Retention
    Abdomen ascites
  • Organ enlargement
    Liver. Mild jaundice may be present

-Neck veins
Severe jugular venous pressure. Neck veins visible distended

-Shortness of breath
Dyspnea present but not as prominent

  • Gastrointestinal
    Loss appetite, bloating
31
Q

Hypertensive crisis:

A

systolic blood pressure greater than 140 mm Hg or a diastolic blood pressure greater than 90 mm Hg.

32
Q

Hypertensive crisis: s/s

A
  • severe headache “the worst headache i’ve ever felt”
  • cerebral hemorrhage, strong bounding pulse, ringing in the ears, nausea, and vomiting, dizziness, warm skin (dry or moist), nose bleed, altered mental status, sudden development of pulmonary edema.
33
Q

Epigastric area:

A

Epigastric pain is pain that is localized to the region of the upper abdomen immediately below the ribs

34
Q

S/s of an acute MI:

A

Onset of pain : Gradual, with additional symptoms
Quality of pain : Tightness or pressure
Severity of pain : Increases with time
Timing of pain: May wax and wane
Region/ radiation: Substernal; back is rarely involved
Clinical signs: Peripheral pulses equal

35
Q

Best position of the hypotensive patient:

A

Trendelenburg’s position involves lowering the head of the bed and raising the foot of the bed of the patient.
Patient’s who have hypotension can benefit from this position because it promotes venous return.

36
Q

Causes of acute coronary syndrome:

A

Caused by a blockage in the coronary arteries. Smoking, high blood pressure, high blood cholesterol, diabetes, physical inactivity, being overweight or obese, family history of chest pain, heart disease, or stroke.

37
Q

Angina pectoris:

A

For a brief time, heart tissues are not getting enough oxygen.
Angina can result from spasm of an artery, it is most often a symptom of atherosclerotics coronary artery disease.

38
Q

Best position of a patient with SOB and hypotension:

A

fowlers postion