A client who was discharged from the hospital 2 days ago after having a permanent pacemaker placed presents to the emergency department with sharp chest pain and difficulty breathing. Which assessment findings require the highest priority intervention?

BP 105/70 manually & flat neck veins

Equal breath sounds with a respiratory rate of 28

Distended neck veins & muffled heart sounds

Heart rate 105 & respiratory rate of 28

Answer and Explanation

The Correct Answer is C

A. BP 105/70 manually & flat neck veins: This blood pressure is within a low-normal range, and flat neck veins suggest no evidence of right-sided heart failure or cardiac tamponade. Though the patient needs evaluation, these findings are not emergent.

B. Equal breath sounds with a respiratory rate of 28: A mildly elevated respiratory rate can indicate distress, but equal breath sounds suggest the absence of pneumothorax or hemothorax. While the patient is symptomatic, this finding alone doesn't demand the most urgent intervention.

C. Distended neck veins & muffled heart sounds: These are classic signs of cardiac tamponade, a life-threatening emergency that can occur due to pacemaker lead perforation. This condition results in fluid accumulation in the pericardial sac, impairing cardiac output and requiring immediate intervention such as pericardiocentesis.

D. Heart rate 105 & respiratory rate of 28: These are signs of physiological compensation and indicate stress or early decompensation. However, without signs like neck vein distention or muffled heart sounds, they are less critical than the findings in option C.

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Correct Answer is A

Explanation

A. the heart rate is greater than 100 bpm in sinus tachycardia: Normal Sinus Rhythm is characterized by a heart rate between 60 and 100 beats per minute (bpm). Sinus tachycardia is defined as a sinus rhythm with a heart rate exceeding 100 beats per minute. The rhythm remains regular, with each P wave followed by a QRS complex, but the rate is significantly faster than normal sinus rhythm.

B. more p waves are present than QRS complexes: In sinus tachycardia, the number of P waves and QRS complexes remains one-to-one, as each atrial impulse continues to be conducted to the ventricles. More P waves than QRS complexes typically suggest atrial flutter or other forms of AV dissociation.

C. the QRS complexes measure greater than 0.10: A widened QRS complex suggests a bundle branch block or ventricular rhythm, not sinus tachycardia. In sinus tachycardia, QRS complexes typically remain narrow, measuring less than 0.10 seconds unless an intraventricular conduction delay is present.

D. the rhythm is often irregular in sinus tachycardia: Sinus tachycardia is usually a regular rhythm with consistent R-R intervals. An irregular rhythm is more indicative of atrial fibrillation or sinus arrhythmia, not a defining characteristic of sinus tachycardia.

A. A 60 year old woman with cardiac dysrhythmias post myocardial infarction. Her HR is 39 & irregular, BP 147/65 B. A 55-year-old woman with HTN due to renal failure from chronic pyleonephritis. HR 92. BP 145/72 C. A 78-year-old man with a history of hyperlipidemia & cardiac dysfunction. He is in 3rd degree heart block. HR 42. BP 92/65 D. A 49-year-old male, BMI 36, history of type 2 diabetes & HTN. HR 105, BP 158/92

Correct Answer is C

Explanation

A. A 60-year-old woman with cardiac dysrhythmias post myocardial infarction. Her HR is 39 & irregular, BP 147/65: Although her heart rate is low, carvedilol is commonly used post-MI to reduce mortality, especially in patients with dysrhythmias. However, caution is warranted, and dosage adjustments or withholding may be necessary due to bradycardia.

B. A 55-year-old woman with HTN due to renal failure from chronic pyelonephritis. HR 92. BP 145/72: This client has stable vitals, and carvedilol can be safely used to help manage hypertension. Renal impairment requires monitoring, but it is not a contraindication if renal function is closely followed.

C. A 78-year-old man with a history of hyperlipidemia & cardiac dysfunction. He is in 3rd degree heart block. HR 42. BP 92/65: Carvedilol is contraindicated in clients with 2nd or 3rd degree heart block without a functioning pacemaker. It can worsen bradycardia and conduction delays, making its use unsafe in this client without rhythm control support.

D. A 49-year-old male, BMI 36, history of type 2 diabetes & HTN. HR 105, BP 158/92: This client is hypertensive and tachycardic, both of which carvedilol can help manage. Although diabetes requires careful monitoring for hypoglycemia, there is no contraindication in this scenario.

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A client who was discharged from the hospital 2 days ago after having a permanent pacemaker placed presents to the emergency department with sharp chest pain and difficulty breathing. Which assessment findings require the highest priority intervention?

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Correct Answer is A

Explanation

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Correct Answer is C

Explanation

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