pretest Flashcards

1
Q

. Common causes of cardiogenic shock

include

A

acute MI, pulmonary embolism, COPD exacerbation, and pneumonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

occurs after an acute spinal cord injury, which disrupts
sympathetic innervation resulting in hypotension and bradycardia. Anaphylactic
shock

A

neurogenic shock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

supraventricular tachycardia

A

narrow complex regular tachycardia

caused by a reentry or an ectopic pacemaker in areas of the heart above the bundle of His, usually the atria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

First-line treatment for a patient with stable SVT is ?

A

vagal maneuvers- bear down, include carotid sinus massage (after auscultating for carotid bruits) and facial immersion in cold water.

If vagal maneuvers fail, the next step is adenosine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

originates from ectopic
ventricular pacemakers and is usually a regular rhythm with rate greater
than 100 beats per minute and wide QRS complexes.

A

Ventricular tachycardia (VT)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ventricular tachycardia treatment unstable

A

In unstable pts, synchronized cardioversion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ventricular tachycardia treatment stable

A

1st line- Amiodarone 150-mg IV over 10 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Drugs that can be given thru endotracheal tube

A

naloxone, atropine, versed, epinephrine, and lidocaine

mnemonic NAVEL.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Unstable A-Fib treatment

A

cardioversion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Cardioversion vs defibrillation

A

Cardioversion is performed with organized cardiac electrical activity with pulses

defibrillation is performed on patients without pulses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The key step when cardioverting is to activate the synchronization mode and confirm the presence of ?

A

sync markers on the R waves
prior to delivering electrical energy.

machine ids R waves and wont deliver electrical energy during it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

pulseless electrical activity (PEA)

A

cardiac electrical activity but no detectable pulses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

patients with ESR have ↑ risk of hyperkalemia –> PEA

_____ should be given first to stabilize the cardiac membranes

A

calcium gluconate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Biphasic defibrillation

A

delivers a charge in one direction for
1/2 of shock, then opposite direction for the second 1/2.

significantly↓ energy for defibrillation and ↓ the risk of myocardial damage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

________ is never recommended for asystole.

A

Defibrillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A common cause of asystole is

A

a disconnected lead or malfunctioning equipment
confirm asystole by switching to
another lead on the cardiac monitor

17
Q

The appropriate treatment for asystole includes

A

CPR
epinephrine every 3 to 5 minutes
atropine every 3 to 5 minutes

18
Q

no relationship between the P waves and QRS complexes

A

3rd degree block

19
Q

First-degree AV block

A

PR interval > 0.20 seconds

Every P wave is still followed by a QRS complex (1:1 conduction).

20
Q

all forms of shock attempt to compensate for hypotension with tachycardia except for

A

neurogenic

21
Q

_________ is the 1st line for second-degree, Mobitz I AV block.

A

Atropine

majority respond without further treatment needed

22
Q

Mobitz I is commonly seen with

A

acute inferior MI
digoxin toxicity
myocarditis
post-cardiac surgery

23
Q

Administration of _________ has been shown to decrease runs of torsades

A

magnesium sulfate

24
Q

Beta Blocker antidote

A

glucagon

thought to work through a separate
receptor that is not blocked by β-adrenergic antagonists, ultimately ↑ inotropy and chronotropy

25
Q

specific ultrasound signs for tamponade

A

right atrial and ventricular collapse

pericardial effusion

26
Q

ST segment elevation in leads II, III, and aVF indicating the patient is having?

A

an inferior wall MI

27
Q

Cushing reflex

A

hypertension, bradycardia, and respiratory depression

in 1/3 of patients with a potentially lethal ↑ ICP

28
Q

Naloxone serious side effects

A
↑ HR
v-fib 
cardiac arrest 
sz
comma 

*So use some caution in AMS–> look for pinpoint pupils, etc

29
Q

alcohol withdrawal seizures may occur anywhere from _______ after cessation

A

6 to 48 hours

30
Q

hypertensive encephalopathy

A
  • rapid ↑ BP accompanied by neurologic changes
  • systolic BP > 220 mmHg
  • diastolic BP > 110 mmHg
  • pressure should only be ↓ 20% -30% in the 1st hour.
31
Q

hypertensive encephalopathy s/s

A

severe HA, NVD, AMS, sz, blindness

32
Q

If a patient is symptomatic from hyponatremia use hypertonic saline (3%) to raise the serum sodium to ______

A

serum sodium to 120 mEq/L

33
Q

DTs usually occur _____ after alcohol cessation

A

48-72 hours

34
Q

Neuroleptic malignant syndrome rx

A
  • Dantrolene

- AMS, hyperthermia, and muscle rigidity

35
Q

classic triad of Wernicke encephalopathy:

A

confusion, ataxia, and ophthalmoplegia

36
Q

ETOH withdrawal with hallucination but no sz

A

alcoholic hallucinosis

37
Q

CNS effects of cocaine ( autonomic and CNS hyperactivity, agitation, paranoia) are managed with ___________

A

benzodiazepines