Try our free nursing testbanks today. click here to join
Teas 7 test, Hesi A2 and Nursing prep
Nursingprepexams LEARN. PREPARE. EXCEL!
  • Home
  • Nursing
  • TEAS
  • HESI
  • Blog
Start Studying Now

Take full exam for free

What is the significance of elevated serum levels of troponin?

A.

This intracellular substance can leak into the blood with cardiac cellular injury or death.

B.

Elevated serum levels of troponin occur because of sustained glycogenolysis.

C.

This substance is elevated when a patient has acute tubular necrosis.

D.

Serum elevation of this acute phase reactant occurs because of tissue injury.

Answer and Explanation

The Correct Answer is A

Choice A rationale

 

Elevated serum levels of troponin indicate cardiac cellular injury or death. Troponin is a protein released into the bloodstream when heart muscle cells are damaged, such as during a myocardial infarction.

 

Choice B rationale

 

Sustained glycogenolysis does not cause elevated troponin levels. Glycogenolysis is the breakdown of glycogen to glucose, primarily occurring in the liver and muscles, not related to troponin release.

 

 

Choice C rationale

 

Acute tubular necrosis does not elevate troponin levels. This condition affects the renal tubules and is typically indicated by elevated creatinine and BUN levels.

 

Choice D rationale

 

Troponin is not an acute phase reactant. Acute phase reactants are proteins whose levels change in response to inflammation, such as C-reactive protein (CRP), not troponin.


Free Nursing Test Bank

  1. Free Pharmacology Quiz 1
  2. Free Medical-Surgical Quiz 2
  3. Free Fundamentals Quiz 3
  4. Free Maternal-Newborn Quiz 4
  5. Free Anatomy and Physiology Quiz 5
  6. Free Obstetrics and Pediatrics Quiz 6
  7. Free Fluid and Electrolytes Quiz 7
  8. Free Community Health Quiz 8
  9. Free Promoting Health across the Lifespan Quiz 9
  10. Free Multidimensional Care Quiz 10
Take full exam free

View Related questions

Correct Answer is A

Explanation

Choice A rationale

Enlarged liver (hepatomegaly) and peripheral edema are common clinical manifestations of right heart failure (RHF). RHF leads to congestion of systemic circulation, causing fluid accumulation in the liver and peripheral tissues.

Choice B rationale

Crackles in the lungs are more commonly associated with left-sided heart failure, where fluid backs up into the pulmonary circulation, leading to pulmonary edema.

Choice C rationale

A dry hacking cough is not a typical symptom of right heart failure. It is more commonly associated with respiratory conditions such as asthma or bronchitis.

Choice D rationale

Altered mentation with pinpoint pupils is not a characteristic of right heart failure. These symptoms are more indicative of neurological conditions or opioid overdose.

Correct Answer is A

Explanation

Choice A rationale

A blood pressure reading of 180/120 mmHg or higher is indicative of a hypertensive crisis. This condition requires immediate medical attention to prevent damage to vital organs such as the heart, kidneys, and brain.

Choice B rationale

A heart rate of 90 beats per minute is within the normal range and does not indicate a hypertensive crisis. While it is important to monitor heart rate, it is not a definitive sign of a hypertensive emergency.

Choice C rationale

A respiratory rate of 20 breaths per minute is within the normal range and does not indicate a hypertensive crisis. Respiratory rate alone is not a reliable indicator of hypertensive emergencies.

Choice D rationale

A temperature of 37°C (98.6°F) is normal and does not indicate a hypertensive crisis. Body temperature is not a primary indicator of hypertensive emergencies.

Quick Links

Nursing Teas Hesi Blog

Resources

Nursing Test banks Teas Prep Hesi Prep Nursingprepexams Blogs
© Nursingprepexams.com @ 2019 -2025, All Right Reserved.