Downers - Labetalol

Question 1

What is the typical IV push dose range for Labetalol in adults?
(Select all that apply)

A. 1-5 mg q5 min
B. 5-20 mg q10 min
C. 25-50 mg q15 min
D. 50-100 mg q10 min

Answer 1

B. 5-20 mg q10 min

Question 2

Which of the following accurately describes the mechanism of action (MOA) of Labetalol?
(Select all that apply)

A. Selective alpha-1 blockade
B. Nonselective beta blockade
C. Selective beta-1 blockade
D. Nonselective alpha blockade

Answer 2

A. Selective alpha-1 blockade
B. Nonselective beta blockade

MOA: selective alpha 1 blockade with nonselective beta blockade (ratio of 1:7 alpha/beta)

Question 3

What is the maximum dose of Labetalol that can be administered via IV push within a specified time frame?
(Select all that apply)

A. 100 mg
B. 200 mg
C. 300 mg
D. 400 mg

Answer 3

C. 300 mg

Question 4

What is the concentration of Labetalol used for IV administration?
(Select all that apply)

A. 1 mg/mL
B. 2 mg/mL
C. 5 mg/mL
D. 10 mg/mL

Answer 4

C. 5 mg/mL

Question 5

What is the typical duration of action for Labetalol?
(Select all that apply)

A. 1-2 hours
B. 2-4 hours
C. 6-8 hours
D. 12 hours

Answer 5

B. 2-4 hours

Onset: 1-2 minutes; duration 2-4 hours (long duration, so be patient with how much you give)

Question 6

What is the onset time of Labetalol when administered intravenously?
(Select all that apply)

A. 30 seconds
B. 1-2 minutes
C. 5 minutes
D. 10 minutes

Answer 6

B. 1-2 minutes

Question 7

What is the half-life of Labetalol?
(Select all that apply)

A. 1 hour
B. 2.5 hours
C. 5.5 hours
D. 8 hours

Answer 7

C. 5.5 hours

Question 8

Which processes are involved in the elimination of Labetalol from the body?
(Select all that apply)

A. Hepatic metabolism
B. Renal excretion
C. Fecal excretion
D. Pulmonary elimination

Answer 8

A. Hepatic metabolism
B. Renal excretion

Question 9

Which of the following conditions is Labetalol used to treat?
(Select all that apply)

A. Hypertension (HTN)
B. Angina
C. Congestive heart failure (CHF)
D. Asthma

Answer 9

A. Hypertension (HTN)
B. Angina

Question 10

What is a notable effect of Labetalol on blood pressure management?
(Select all that apply)

A. Decreases systemic blood pressure without causing reflex tachycardia
B. Increases systemic blood pressure by enhancing cardiac output
C. Leads to reflex tachycardia as a common side effect
D. Maintains blood pressure while increasing heart rate

Answer 10

A. Decreases systemic blood pressure without causing reflex tachycardia

Question 11

What condition is a contraindication for the use of Labetalol?
(Select all that apply)

A. Hypertension (HTN)
B. Angina
C. Congestive heart failure (CHF)
D. Myocardial infarction

Answer 11

C. Congestive heart failure (CHF)

Question 12

Which of the following precautions should be taken when administering Labetalol?
(Select all that apply)

A. Labetalol crosses the placenta.
B. Labetalol significantly affects uterine blood flow.
C. Labetalol should be used cautiously in pregnant patients.
D. Labetalol does not impact uterine blood flow.

Answer 12

A. Labetalol crosses the placenta.
C. Labetalol should be used cautiously in pregnant patients.
D. Labetalol does not impact uterine blood flow.

Question 13

Which of the following statements about Labetalol’s side effects is correct?
(Select all that apply)

A. Labetalol can cause orthostatic hypotension
B. Skin tingling is a side effect of Labetalol.
C. Orthostatic hypotension is not a known side effect of Labetalol.
D. Labetalol does not typically cause skin-related side effects.

Answer 13

A. Labetalol can cause orthostatic hypotension
B. Skin tingling is a side effect of Labetalol.