Excessive exercise without rest results in accumulation of carbon dioxide and Lactic acid and this causes fatigue in muscles. Therefore, what advice should a nurse give to patients?

1. A

   Sit and take rest

2. B

   Breath in-between exercise

3. C

   Sit and breath

4. D

   Breathe deeply after exercise

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2015

Explanation

• Strenuous exercise creates an 'oxygen debt' where muscles produce energy anaerobically, leading to lactic acid and carbon dioxide buildup.
• This accumulation causes muscle fatigue.
• Deep breathing after exercise is the most effective way to increase oxygen intake.
• The increased oxygen helps metabolize the lactic acid and remove carbon dioxide, thus accelerating recovery and relieving fatigue.
• This process is often referred to as 'repaying the oxygen debt'.

Why Other Options Were Wrong

• Option A: While resting is important to stop further muscle exertion and lactic acid production, it is a passive form of recovery. It does not actively increase the rate of oxygen intake needed to clear the existing lactic acid.
• Option B: Breathing in-between exercise is a preventive strategy to maintain aerobic respiration and delay the onset of fatigue. The question asks for advice on how to manage fatigue that has already occurred.
• Option C: This advice is too vague. The key to effective recovery is not just breathing, but the depth of the breath. Shallow breathing would not significantly increase oxygen intake to repay the oxygen debt.

Related Visual

Clinical Relevance

• Nursing practice connection: Knowing Management of exercise-induced muscle fatigue and the concept of oxygen debt helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
• Nurses educate patients on safe exercise practices, including proper warm-up, cool-down, and breathing techniques to prevent injury and maximize benefits.
• This knowledge is crucial in cardiac and pulmonary rehabilitation, where patients must exercise within their physiological limits.
• Understanding exercise-induced fatigue helps nurses differentiate it from pathological fatigue, such as that seen in anemia, heart failure, or chronic fatigue syndrome.

How to Approach the Question

• First, identify the core physiological process described in the question: excessive exercise leads to a buildup of lactic acid and CO2, causing fatigue.
• Recognize this as the concept of 'anaerobic metabolism' and 'oxygen debt'.
• Analyze the question's goal: to find the best nursing advice to resolve this state.
• Evaluate each option based on how effectively it addresses the oxygen debt.
• Option A (rest) is passive. Option B (breathing during) is preventive. Option C (breathing) is vague.
• Conclude that Option D (deep breathing) is the most active and specific intervention to increase oxygen supply and reverse the effects of anaerobic metabolism.

Concept Tested & Keywords

• Concept Tested: Management of exercise-induced muscle fatigue and the concept of oxygen debt.
• Stem keywords: Excessive exercise, fatigue, muscles, carbon dioxide, Lactic acid
• Lead-in keywords: what advice should a nurse give

Question ID

QG-Zw9HzmCopK3ONY7qb0u

Copy ID

Reference Book

E6 Nursing Fundamentals Taylor p. 724-726

E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 8-10