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When administering an antianginal drug such as nitroglycerin (NTG) the nurse identifies which as the most common response.

A.

Bradycardia

B.

Tachycardia

C.

Hypotension

D.

Dry mouth

Answer and Explanation

The Correct Answer is C

A) Bradycardia
Bradycardia (a slow heart rate) is not the most common response to nitroglycerin (NTG). While NTG can affect heart rate in some individuals, its primary action is related to blood vessels, and it typically leads to vasodilation, which more commonly results in reflex tachycardia (an increased heart rate), rather than bradycardia.

 

B) Tachycardia
Tachycardia (an increased heart rate) can occur as a compensatory mechanism when nitroglycerin causes vasodilation and a decrease in blood pressure. However, this is more of a secondary effect. The primary action of nitroglycerin is to lower blood pressure (by dilating blood vessels), and in response to the lowered blood pressure, the body may try to compensate by increasing the heart rate.

 

C) Hypotension
The most common and primary response to nitroglycerin (NTG) administration is hypotension. Nitroglycerin works by relaxing smooth muscle in blood vessels, leading to vasodilation (widening of blood vessels). This reduces the amount of work the heart has to do and lowers the overall blood pressure. Hypotension is expected as part of the therapeutic effect of NTG, especially with a larger dose or rapid administration (e.g., sublingual NTG).

 

D) Dry mouth
While many medications can cause dry mouth (especially anticholinergic drugs), nitroglycerin is not typically associated with this issue. Its primary action is vasodilation, and while it can cause other symptoms like headaches, dizziness, and hypotension, dry mouth is not considered a common or significant effect.


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Related Questions

Correct Answer is C

Explanation

A) Yes. Antacids can help alleviate heartburn caused by digoxin.
While antacids can help relieve heartburn, they do not directly alleviate heartburn caused by digoxin. In fact, antacids can interact with digoxin in a way that affects its absorption, potentially leading to suboptimal therapeutic effects.

B) Yes, you can take antacids with digoxin without any interactions.
Antacids can interact with digoxin and reduce its absorption, particularly those that contain aluminum, magnesium, or calcium. Therefore, it is important to space the administration of these medications to avoid potential drug interactions.

C) Yes, but make sure to take the antacid at least 2 hours before or after taking digoxin.. Antacids, especially those containing aluminum, calcium, or magnesium, can decrease the absorption of digoxin, reducing its effectiveness. To prevent this interaction, the nurse should advise the client to take the antacid at least 2 hours before or after taking digoxin to ensure that digoxin is properly absorbed and remains effective.

D) No, antacids can decrease the absorption of digoxin and result in a decreased drug effect.
While this statement is partly true in that antacids can decrease digoxin absorption, it is too absolute to recommend avoiding antacids altogether. The key is proper timing—taking antacids at least 2 hours apart from digoxin.

Correct Answer is D

Explanation

Rationale:

Ordered Dose:

The prescription is for 12 mg of Celestone Soluspan (betamethasone) IM every 24 hours for 2 doses.

Available Dose (from label): The vial contains 6 mg/mL.

Dosage Calculation: Using the formula:

Volumetoadminister(mL) = Availableconcentration(mg/mL) / Ordereddose(mg)

Volumetoadminister = 12mg / 6mg/mL = 2 mL

Administration Route:

The order specifies IM (intramuscular) administration, aligning with the label instructions.

Thus, 2 mL IM is the correct dosage to administer.

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