A client with severe bronchial pneumonia has been receiving oxygen, respiratory treatments, antibiotics, and intravenous fluids.
Which arterial blood gas result would indicate that the treatment has been effective?
pH, 7.32; pCO2, 47 mm Hg; HCO3, 29 mEq/L; pO2, 80.
pH, 7.34; pCO2, 49 mm Hg; HCO3, 27 mEq/L; pO2, 77.
pH, 7.38; pCO2, 40 mm Hg; HCO3, 25 mEq/L; pO2, 88.
pH, 7.48; pCO2, 43 mm Hg; HCO3, 23 mEq/L; pO2, 85.
The Correct Answer is C
This is because it shows a normal pH, pCO2, HCO3 and pO2, indicating that the treatment has been effective in restoring normal gas exchange and acid- base balance.
Choice A is wrong because it shows a low pH, high pCO2 and high HCO3, indicating a mixed respiratory and metabolic acidosis.
Choice B is wrong because it shows a low pH, high pCO2 and low HCO3, indicating a combined respiratory and metabolic acidosis.
Choice D is wrong because it shows a high pH, low pCO2 and low HCO3, indicating a mixed respiratory and metabolic alkalosis.
The normal ranges for arterial blood gas (ABG) are:
- pH: 7.35 – 7.45
- pO2: 10 – 14 kPa or 75 – 105 mmHg
- pCO2: 4.5 – 6 kPa or 34 – 45 mmHg
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Using an automatic BP cuff with a shivering client with a history of an irregular heart rate can result in inaccurate and low readings.
This is because shivering can interfere with the cuff inflation and deflation, and an irregular heart rate can affect the accuracy of the device.
The nurse should intervene and use a manual BP cuff with a stethoscope instead.
Choice B is wrong because pulling the client’s ear pinna backward, up and out to obtain a tympanic membrane temperature is the correct technique for adults and older children. This helps to straighten the ear canal and allow the light to reflect on the tympanic membrane, which shares the same vascular artery as the hypothalamus.
Choice C is wrong because counting the client’s radial pulse who is supine with the forearm straight alongside the body is an appropriate method.
The radial pulse can be easily palpated at the wrist, and the supine position and straight forearm do not affect the pulse rate.
Choice D is wrong because counting the respirations for one full minute for a client with tachypnea is a recommended practice.
Tachypnea means rapid breathing, and counting for one full minute can ensure accuracy and detect any variations in the respiratory pattern.
Correct Answer is B
Explanation
“My medication will be given at the scheduled times to best manage my pain.” This statement demonstrates understanding of the pain management plan because it shows that the client knows the importance of preventing pain from becoming severe by taking medication regularly. Scheduled administration of analgesics is more effective than administering them on demand.
Choice A is wrong because it implies that the client will wait until the pain is severe before asking for medication, which can make it harder to control.
Choice C is wrong because it suggests that the client expects to receive inadequate pain relief due to their history of opioid abuse, which is not ethical or evidence-based.
Choice D is wrong because it indicates that the client believes they will be denied any narcotics for pain, which is also not ethical or
evidence-based. Clients with a history of opioid abuse can still receive opioids for acute pain, but they may need higher doses or more frequent administration to achieve adequate analgesia.
Normal ranges for vital signs are as follows: respiratory rate 12-20 breaths per minute, heart rate 60-100 beats per minute, blood pressure 120/80 mmHg, temperature 36.5-37.5°C (97.7- 99.5°F).
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