A nurse in a critical care unit is caring for a client who suﬀered a knife wound to the chest. The nurse suspects the client is developing cardiac tamponade. Which of the following assessment findings should the nurse identify as supporting this suspicion?

Flatened neck veins.

Bradycardia.

Sudden lethargy.

Muﬄed heart sounds.

Answer and Explanation

The Correct Answer is D

Choice A Reason: This choice is incorrect because ﬂatened neck veins are not a sign of cardiac tamponade. Cardiac tamponade is a condition in which ﬂuid accumulates in the pericardial sac that surrounds the heart, causing compression and impaired filling of the heart chambers. This leads to reduced cardiac output and hypotension. One of the manifestations of cardiac tamponade is distended neck veins due to increased venous pressure and impaired venous return.

Choice B Reason: This choice is incorrect because bradycardia is not a sign of cardiac tamponade. Bradycardia is a condition in which the heart rate is slower than normal (less than 60 beats per minute). It may be caused by various factors such as vagal stimulation, medication side eﬀects, hypothyroidism, or sinus node dysfunction. It may cause symptoms such as fatigue, dizziness, or syncope, but it does not indicate cardiac tamponade.

Choice C Reason: This choice is incorrect because sudden lethargy is not a specific sign of cardiac tamponade. Lethargy is a condition in which the person feels tired, sluggish, or drowsy. It may be caused by various factors such as sleep deprivation, depression, infection, anemia, or hypoglycemia. It may aﬀect the person's mental and physical performance, but it does not indicate cardiac tamponade.

Choice D Reason: This choice is correct because muﬄed heart sounds are a sign of cardiac tamponade. Muﬄed heart sounds are heart sounds that are fainter or softer than normal due to reduced transmission of sound waves through ﬂuid-filled pericardial sac. They may indicate that the heart function is compromised by cardiac tamponade and require immediate intervention such as pericardiocentesis (removal of ﬂuid from pericardial sac).

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Correct Answer is C

Explanation

Choice A Reason: This is incorrect because hypertension is a condition of high blood pressure. A client who has hypovolemic shock is more likely to have hypotension, which is a condition of low blood pressure, due to ﬂuid loss and reduced cardiac output.

Choice B Reason: This is incorrect because bradypnea is a condition of slow breathing. A client who has hypovolemic shock is more likely to have tachypnea, which is a condition of fast breathing, due to hypoxia and increased respiratory demand.

Choice C Reason: This is correct because oliguria is a condition of low urine output. A client who has hypovolemic shock may have oliguria due to decreased renal perfusion and activation of the renin-angiotensin-aldosterone system, which causes sodium and water retention.

Choice D reason: This is incorrect because ﬂushing of the skin is a condition of redness and warmth of the skin. A client who has hypovolemic shock may have pallor and coolness of the skin due to vasoconstriction and reduced blood ﬂow.

A. 54 percent B. 36 percent C. 18 percent D. 9 percent

Correct Answer is A

Explanation

Choice A Reason: To calculate the total body surface area (TBSA) affected by burns using the Rule of Nines, the body is divided into sections, each representing a percentage of TBSA:

Front of one leg = 9%
Back of one leg = 9%
Front of one arm = 4.5%
Back of one arm = 4.5%

Now for the calculation:

Both legs (front and back):
- Front of both legs = 9% × 2 = 18%
- Back of both legs = 9% × 2 = 18%
- Total for both legs = 18% + 18% = 36%
Both arms (front and back):
- Front of both arms = 4.5% × 2 = 9%
- Back of both arms = 4.5% × 2 = 9%
- Total for both arms = 9% + 9% = 18%
Total TBSA:
- Legs (36%) + Arms (18%) = 54%

The nurse should document burns to 54% of the client's total body surface area (TBSA).

Choice B Reason:This choice is incorrect because it uses the original rule of nines for adults, not children. It also does not account for the depth and degree of the burns.

Choice C Reason: This choice is incorrect because it uses the original rule of nines for adults, not children. It also does not account for the depth and degree of the burns.

Choice D Reason: This choice is incorrect because it uses a random percentage that does not correspond to any rule or calculation.

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A nurse in a critical care unit is caring for a client who suﬀered a knife wound to the chest. The nurse suspects the client is developing cardiac tamponade. Which of the following assessment findings should the nurse identify as supporting this suspicion?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has hypovolemic shock. Which of the following should the nurse recognize as an expected finding?

Correct Answer is C

Explanation

A nurse in an emergency department is caring for an adult client who has burns on the front and back of both his legs and arms. Using the rule of nines, the nurse should document burns to which percentage of the client's total body surface area (TBSA)?

Correct Answer is A

Explanation

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