After the nurse gives IV atropine to a patient with symptomatic type 1. second-degree atrioventricular (AV) block, which finding indicates that the drug has been effective?

Increase in the patient's heart rate.

Decrease in premature ventricular contractions.

Increase in strength of peripheral pulses.

Decrease in premature atrial contractions

Answer and Explanation

The Correct Answer is A

Atropine is an anticholinergic medication that acts by blocking the effects of the parasympathetic nervous system on the heart, leading to an increase in heart rate (positive chronotropic effect) and conduction velocity (positive dromotropic effect). In patients with symptomatic type 1 second degree atrioventricular (AV) block (also known as Mobitz type 1 or Wenckebach), the electrical impulses between the atria and ventricles are delayed or blocked intermittently, resulting in a progressive lengthening of the PR interval until a ventricular beat is dropped.

When atropine is administered to a patient with symptomatic type 1 AV block, it can counteract the increased vagal tone that contributes to the block and help improve the conduction through the AV node. As a result, the heart rate is expected to increase, which is a positive response to the medication.

The other options listed (B) Decrease in premature ventricular contractions, (C) Increase in strength of peripheral pulses, and (D) Decrease in premature atrial contractions, are not directly related to the effect of atropine on type 1 AV block and are not typical findings associated with atropine administration in this context. The main goal of administering atropine in this situation is to increase the heart rate and improve the AV conduction to alleviate symptoms associated with the AV block.

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Correct Answer is D

Explanation

When a patient with dilated cardiomyopathy develops new onset atrial fibrillation (AF) that has been unresponsive to drug therapy, the nurse should prioritize patient education about anticoagulant therapy. Atrial fibrillation increases the risk of blood clots forming in the heart's atria due to the irregular and ineffective pumping of blood. These blood clots can potentially travel to other parts of the body, leading to serious complications such as stroke.

Anticoagulant therapy, also known as blood-thinning medication, is commonly prescribed for patients with atrial fibrillation to prevent the formation of blood clots. The most common anticoagulant prescribed for AF is warfarin or direct oral anticoagulants (DOACs) such as apixaban, rivaroxaban, dabigatran, or edoxaban. The nurse should educate the patient about the importance of taking the anticoagulant as prescribed and the need for regular monitoring of clotting times (INR for warfarin) to ensure the medication is effective and the dose is appropriate.

While other options listed in the choices may be relevant in specific situations, the priority in this case is to address the potential risk of stroke associated with atrial fibrillation and the importance of anticoagulant therapy to manage that risk effectively.

A. pH 7.25, HCO3- 19mEq / L PaCO2 30 mm Hg B. pH 7.30, HCO3-26 26mEq / L PaCO2 50 mm Hg C. pH 7.50 0. HCO * 3 - 20mE /L, PaCO2 32 mm Hg D. pH 7.55, HCO3- 30mEq / L PaCO2 31 mm Hg

Correct Answer is A

Explanation

In a client with chronic kidney disease (CKD), metabolic acidosis is a common acid-base disorder due to impaired excretion of acid and decreased bicarbonate reabsorption in the kidneys. The arterial blood gas values associated with metabolic acidosis in CKD are a low pH (acidemia), low bicarbonate (HCO3-), and normal or low partial pressure of carbon dioxide (PaCO2). Option A fits this pattern, with a pH of 7.25 (acidic), HCO3- of 19 mEq/L (low), and a PaCO2 of 30 mm Hg (within the normal to low range).

Option B shows a pH of 7.30 (acidic) but with a higher bicarbonate level of 26 mEq/L, which is not consistent with metabolic acidosis. The elevated bicarbonate level suggests metabolic alkalosis, which is not expected in a client with CKD.

Option C has a pH of 7.50 (alkaline) with an elevated bicarbonate level of 20 mEq/L and a low PaCO2 of 32 mm Hg. This set of values is indicative of metabolic alkalosis, which is not expected in a client with CKD.

Option D has a pH of 7.55 (alkaline) with an elevated bicarbonate level of 30 mEq/L and a low PaCO2 of 31 mm Hg. This set of values is indicative of metabolic alkalosis, which is not expected in a client with CKD.

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After the nurse gives IV atropine to a patient with symptomatic type 1. second-degree atrioventricular (AV) block, which finding indicates that the drug has been effective?

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Naxlex Comprehensive Predictor Exams

A patient with dilated cardiomyopathy has new onset atrial fibrillation that has been unresponsive to drug therapy for several days. What topic should the nurse plan to include in patient teaching?

Correct Answer is D

Explanation

A nurse is reviewing the arterial blood gas values of a client who has chronic kidney disease. Which of the following sets of values should the nurse expect?

Correct Answer is A

Explanation

A nurse is providing dietary teaching to a client who has chronic kidney disease (CKD). The nurse should instruct the client to limit which of the following nutrients? (Select all that apply.)

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