Nokea
If the CO2 concentration in the blood increases, the breathing shall
- A. Increase
- B. Decrease
- C. Stop
- D. No affect
Correct Answer: A
Rationale: When CO2 concentration in the blood increases, it leads to respiratory acidosis, causing the body to increase breathing rate to expel excess CO2 and restore pH balance. This increase in breathing helps eliminate CO2 through exhalation, thus the correct answer is A.
Choice B is incorrect because an increase in CO2 concentration triggers an increase in breathing to remove the excess CO2, not decrease it.
Choice C is incorrect because stopping breathing would be life-threatening and is not a physiological response to high CO2 levels.
Choice D is incorrect because an increase in CO2 concentration does have an effect on breathing rate to maintain homeostasis.
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Which intervention for airway management should you delegate to the nursing assistant?
- A. Assist client to sit up on side of bed.
- B. Instruct client to cough effectively.
- C. Teach client to use incentive spirometry.
- D. Auscultate breath sounds every 4 hours.
Correct Answer: A
Rationale: The correct answer is A. Assisting the client to sit up is a basic intervention suitable for a nursing assistant. Instructing effective coughing (B) and teaching incentive spirometry (C) require more skill. Auscultating breath sounds (D) is outside the scope of practice for a nursing assistant.
BCG vaccine is used to curb
- A. Pneumonia
- B. Tuberculosis
- C. Emphysema
- D. Small pox
Correct Answer: B
Rationale: The correct answer is B: Tuberculosis. BCG vaccine is specifically designed to prevent tuberculosis, which is a bacterial infection caused by Mycobacterium tuberculosis. The vaccine stimulates the immune system to provide protection against TB. Pneumonia (A), Emphysema (C), and Smallpox (D) are not targeted by the BCG vaccine. Pneumonia is usually caused by viruses or bacteria different from TB, Emphysema is a chronic lung condition unrelated to TB, and Smallpox is caused by the Variola virus, which is different from the bacteria causing TB. Therefore, the correct answer is B as BCG vaccine is used to curb tuberculosis.
A client is found to be allergic to Chinese food, which causes acute asthma. Which of the following instructions should the nurse give the client?
- A. "Only eat Chinese food once a month."
- B. "Use your inhalers before eating Chinese food."
- C. "Avoid Chinese food because this is a trigger for you."
- D. "Determine other causes, because Chinese food wouldn't cause such a violent reaction."
Correct Answer: C
Rationale: Rationale: Choice C is correct because avoiding Chinese food, a known trigger for the client's acute asthma, is crucial to prevent future asthma attacks. By eliminating the trigger, the client can reduce the risk of allergic reactions and asthma exacerbations.
Summary:
A: Incorrect. Eating Chinese food once a month still exposes the client to the trigger, increasing the risk of asthma attacks.
B: Incorrect. Using inhalers before eating Chinese food may help manage symptoms temporarily but does not address the root cause of the allergic reaction.
D: Incorrect. Dismissing the client's known trigger without further investigation can lead to serious health consequences.
Tracheal respiration is found in
- A. Insects and Millipedes
- B. Scorpion and Prawn
- C. Pila and Lobuster
- D. Starfish and Sea cucumber
Correct Answer: A
Rationale: Tracheal respiration is a type of respiration system found in insects and millipedes. This system involves the use of tracheae, which are tiny tubes that deliver oxygen directly to tissues. Insects and millipedes have evolved this efficient respiratory system to support their high metabolic rates. Scorpions and prawns (Choice B), Pila and lobsters (Choice C), and starfish and sea cucumbers (Choice D) do not have tracheal respiration systems. Therefore, the correct answer is A.
The nurse reading a tuberculin skin test (TST) on a new employee who lives in the Midwest,
is 20-years-old, and has no known history of contact with any people with tuberculosis (TB).
The nurse should interpret the reading as positive if the area around the injection site has an
induration of how many millimeters?
- A. 0 mm
- B. 5 mm
- C. 10 mm
- D. 15 mm
Correct Answer: D
Rationale: The correct answer is D (15 mm) because for a low-risk individual like the new employee, a TST is considered positive if the induration is 15 mm or greater. This is based on the guidelines from the Centers for Disease Control and Prevention (CDC) for interpreting TST results in individuals without known risk factors. Choices A, B, and C are incorrect because an induration of 0 mm, 5 mm, or 10 mm, respectively, would not meet the criteria for a positive TST in this low-risk individual. It is important to consider the individual's risk factors and follow established guidelines to accurately interpret TST results.