Critical Care Flashcards

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1
Q

Most important parameter to monitor in COPD exacerbation

A

mental status
restlessness, decreased LOC, difficult arousal, confusion, etc. need to be reported to HCP b/c indication of CO2 retention and worsening hypercapnia

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2
Q

Interventions for pt who has just been extubated

A
  • high fowlers
  • warm, humidified O2
  • oral care
  • deep breathing, coughing, incentive spirometry
  • NPO until MBS
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3
Q

When to suction

A

based on clinical findings such as adventitious breath sounds, elevated peak airway pressure, coughing or signs of resp distress

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4
Q

High-pressure mechanical ventilator alarm causes

A
  • kinked ventilator tubing
  • condensation in circuit tubing
  • kinked tube
  • obstruction (secretions) in tube
  • biting tube
  • increased airway resistance (bronchospasm, excessive secretions)
  • decreased lung compliance (pneumo, atelectasis, pulmonary edema, acute resp distress)
    ventilator desynchrony (anxiety, pain, coughing)
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5
Q

Low-pressure mechanical ventilator alarm causes

A
  • tubing disconnect or leak
  • tube cuff leak
  • loss of airway (total or partial extubation or decannulation)
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6
Q

Complication associated with PEEP

A

barotrauma
high levels of PEEP (usually kept at 5cm H2O) can cause overdistension and rupture of alveoli -> barotrauma -> pneumo or subcutaneous emphysema

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7
Q

Therapeutic hypothermia

A
  • initiated in clients who are comatose or do not follow commands after resuscitation
  • neurologic injury most common cause of mortality in clients who have had cardiac arrest, particularly v fib or pulseless v tach
  • therapeutic hypothermia shown to decrease mortality rates and improve neuro outcomes
  • client cooled to 32-34 degrees for 24hrs, then rewarmed
    nsg: cardiac monitor (brady common), core body temp, BP (MAP > 80), HOB 30 degrees
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8
Q

Frostbite treatment

A
  • remove clothing + jewelry
  • do not massage, rub, or squeeze
  • warm water heated to 37-39
  • analgesia
  • elevate injuries after reqarming
  • loose, nonadherent, sterile dsgs
  • monitor for compartment syndeome
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9
Q

Dopamine infusion

A
  • to treat hypotension, enhances CO by increasing myocardia contractility, HR, and BP through vasoconstriction
  • adverse effects = tachy, dysrhythmias, myocardial ischemia
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10
Q

Normal central venous pressure

A

2-8mmHg

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11
Q

Normal MAP

A

70-105mmHg

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12
Q

Normal SVR

A

800-1200dynes/sec/cm

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13
Q

S/S neurogenic shock

A
  • decreased HR
  • massive vasodilation
  • pooling of blood in venous circulation
  • hypotension
  • warm and dry skin initially
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14
Q

Initial intervention for SVT

A

ask client to bear down

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15
Q

Intervention before abg draw from pt on mechanical vent

A

avoid suctioning pt, can result in inaccurate abgs

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16
Q

abg results for pt in DKA

A

metabolic acidosis
pH < 7.35
HCO3 <24

17
Q

When to activate RRT

A

acute change in any of:
heart rate <40 or >130
SBP <90
RR <8 or >28
SpO2 <90 despite O2
Urine output <50mL/4h
LOC

18
Q

Most serious complication of Guillan-Barre

A

respiratory compromise

19
Q

Positioning for hypovolemic shock

A

elevated legs and HOB<30 so gravity assists with venous return and increased CO + perfusion

20
Q

Steps for defibrillation

A

1) turn on defibrillator
2) place pads on pts chest
3) charge defibrillator, continue compressions until its charged and ready
4) clear
5) deliver shock
6) immediately resume compressions

21
Q

Most concerning finding in PACU

A

muscle stiffness b/c malignant hyperthermia

22
Q

Interventions to reduce ICP

A
  • elevate HOB to 30 w/ head/neck in neutral position
  • stool softeners
  • manage pain + fever
  • calm environment
  • adequate O2
  • hyperventilating and preoxygenating before suctioning -> reduce CO2 -> induces vasoconstriction (b/c CO2=vasodilator)
23
Q

Tx for increased CVP + PAWP

A

loop diuretics (furosemide) -> decrease ventricular preload

24
Q

Adverse effect of positive pressure ventilation

A

hypotension
PPV -> increased intrathoracic pressure + reduced venous return + CO -> hypotension

25
Q

Adult chest compressions

A
  • 5cm depth
  • 2 breaths for every 30 compressions
  • hands in center of chest on lower half of the sternum
  • rate of 100-120
26
Q

Location of phlebostatic axis

A

level of atria at 4th ICS, 1/2 anterior-posterior diameter