A client in the beginning stages of an asthma attack has arterial blood gases that reveal the following results: pH 7.51, PaCO2 28 mmHg, PaO2 75 mmHg, O2 saturation 92%, HCO3 24 mEq/L. The nurse interprets this blood gas result as:

Metabolic alkalosis.

Metabolic acidosis.

Respiratory alkalosis.

Respiratory acidosis.

Answer and Explanation

The Correct Answer is C

Choice A reason: Metabolic alkalosis is characterized by an elevated pH and an increased bicarbonate (HCO3) level. In this case, the pH is elevated (7.51), but the bicarbonate level is within the normal range (24 mEq/L), indicating that the alkalosis is not metabolic in origin.

Choice B reason: Metabolic acidosis is characterized by a decreased pH and a decreased bicarbonate (HCO3) level. In this scenario, the pH is elevated, not decreased, and the bicarbonate level is normal, ruling out metabolic acidosis.

Choice C reason: Respiratory alkalosis is characterized by an elevated pH and a decreased partial pressure of carbon dioxide (PaCO2). The given values show a pH of 7.51 (elevated) and a PaCO2 of 28 mmHg (decreased), which are indicative of respiratory alkalosis. This condition often occurs in the early stages of an asthma attack due to hyperventilation, which causes excessive exhalation of CO2.

Choice D reason: Respiratory acidosis is characterized by a decreased pH and an increased PaCO2. In this case, the pH is elevated, and the PaCO2 is decreased, which is the opposite of what is seen in respiratory acidosis.

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Correct Answer is ["0.5"]

Explanation

Step 1: Convert the prescribed dose from mcg to mg.

235 mcg ÷ 1000 = 0.235 mg

Step 2: Determine the strength of the available tablet.

Available strength = 0.5 mg per tablet

Step 3: Calculate the number of tablets needed.

Number of tablets = 0.235 mg ÷ 0.5 mg/tablet

Step 4: Perform the division.

0.235 ÷ 0.5 = 0.47

Step 5: Round the answer to the nearest tenth.

0.47 rounded to the nearest tenth = 0.5

A. Exercise B. Pollen C. Animal dander D. Emotional stress E. Recent travel abroad

Correct Answer is ["A","B","C","D"]

Explanation

Choice A reason:

Exercise is a well-known trigger for asthma, particularly exercise-induced bronchoconstriction (EIB). During physical activity, especially in cold or dry air, the airways can narrow, leading to symptoms such as shortness of breath, wheezing, and coughing. Proper management and pre-exercise medication can help mitigate these effects.

Choice B reason:

Pollen is a common allergen that can trigger asthma symptoms. Pollen from trees, grasses, and weeds can cause allergic reactions that lead to asthma exacerbations. Seasonal variations in pollen levels can significantly impact individuals with asthma, making it important to monitor pollen counts and take preventive measures.

Choice C reason:

Animal dander, which consists of tiny flakes of skin shed by cats, dogs, and other animals, is a frequent asthma trigger. Proteins found in the dander, saliva, and urine of pets can cause allergic reactions and asthma symptoms. Reducing exposure to pets and maintaining a clean environment can help manage this trigger.

Choice D reason:

Emotional stress can also trigger asthma symptoms. Stress and strong emotions can lead to hyperventilation and changes in breathing patterns, which can exacerbate asthma. Stress management techniques and relaxation exercises can be beneficial in controlling asthma symptoms related to emotional stress.

Choice E reason:

Recent travel abroad is not typically considered a common trigger for asthma. While travel can expose individuals to different environmental factors and allergens, it is not a direct trigger like the other options listed. However, it is important for individuals with asthma to plan and prepare for travel to manage their condition effectively.

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A client in the beginning stages of an asthma attack has arterial blood gases that reveal the following results: pH 7.51, PaCO2 28 mmHg, PaO2 75 mmHg, O2 saturation 92%, HCO3 24 mEq/L. The nurse interprets this blood gas result as:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client prescribed drug N 235 mcg PO daily. Available is drug N PO 0.5 mg per 1 scored tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.5"]

Explanation

Which of the following would the nurse discuss as common triggers for a client newly diagnosed with asthma? (SELECT ALL THAT APPLY)

Correct Answer is ["A","B","C","D"]

Explanation

The nurse is aware that a common adverse effect of anesthetic agents experienced by the client is:

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