A patient has the following blood gases: PaCO2 33, pH 7.50, HCO3 23. Which of the following could NOT be the cause of this condition?

Aspirin toxicity

Fever

Anxiety attack

Chronic obstructive pulmonary disease (COPD)

Answer and Explanation

The Correct Answer is D

A. Aspirin Toxicity:
Effect on Blood Gases: Aspirin toxicity can cause respiratory alkalosis due to increased respiratory rate (hyperventilation), leading to a decreased PaCO2 and increased pH.
Relation to Given Blood Gases: It could potentially cause the observed blood gas values (low PaCO2 and high pH), making it a possible cause.

B. Fever:
Effect on Blood Gases: Fever might cause hyperventilation, resulting in respiratory alkalosis with decreased PaCO2 and increased pH.
Relation to Given Blood Gases: It could potentially cause the observed blood gas values.

C. Anxiety Attack:
Effect on Blood Gases: Anxiety attacks can lead to hyperventilation and subsequent respiratory alkalosis with low PaCO2 and high pH.
Relation to Given Blood Gases: It could potentially cause the observed blood gas values.

D. Chronic Obstructive Pulmonary Disease (COPD):
Effect on Blood Gases: COPD typically causes respiratory acidosis due to impaired gas exchange, resulting in elevated PaCO2 and decreased pH.
Relation to Given Blood Gases: COPD wouldn't typically cause the observed blood gas values of low PaCO2 and high pH.

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Correct Answer is C

Explanation

A. "The parathyroid has no effect on calcium levels in the body; this will just help prevent osteoporosis":
Explanation: This statement is incorrect. The parathyroid gland plays a crucial role in calcium homeostasis. Hypoparathyroidism, characterized by decreased parathyroid hormone (PTH) production, leads to low blood calcium levels, not high levels.

B. "The reason you have hypoparathyroidism is that you were diagnosed with hypothyroidism, and when the thyroid doesn't work, neither does the parathyroid, so you need these supplements."
Explanation: This statement is incorrect. The parathyroid and thyroid are separate glands with distinct functions. Hypoparathyroidism is not a result of hypothyroidism.

C. "A decrease in parathyroid hormone causes low calcium levels, so your body to break down bones to maintain normal calcium levels, and this will prevent that from happening."
Explanation: This is the correct statement. Hypoparathyroidism leads to a decrease in PTH, resulting in low blood calcium levels. Without sufficient PTH, the body may resort to breaking down bones to maintain calcium levels.

D. "An increase in parathyroid hormone causes your body to move calcium into the cells to reduce blood calcium levels, so you have to replace the levels in the blood."
Explanation: This statement is incorrect. An increase in parathyroid hormone (PTH) typically leads to increased blood calcium levels by promoting the release of calcium from bones and reducing calcium excretion by the kidneys. This describes hyperparathyroidism, not hypoparathyroidism.

A. 30 minute onset; 2 hour duration B. 15 minute onset; 30-60 minutes peak C. 2 hour onset; 12 hour duration D. 15 minute onset; no peak (continuous)

Correct Answer is B

Explanation

A. 30 minute onset; 2-hour duration: This does not accurately represent the onset and peak action time of Insulin Lispro.

B. 15 minute onset; 30-60 minutes peak: This is correct. Insulin Lispro has a rapid onset (starts working within 15 minutes) and a peak action time of 30-60 minutes after administration.

C. 2-hour onset; 12-hour duration: This is not accurate for rapid-acting insulin. Rapid-acting insulin has a much quicker onset and shorter duration compared to this option.

D. 15 minute onset; no peak (continuous): While the onset time is correct, stating "no peak" is not entirely accurate. Rapid-acting insulin does have a peak, but it's relatively short, occurring within the first hour after administration.

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A patient has the following blood gases: PaCO2 33, pH 7.50, HCO3 23. Which of the following could NOT be the cause of this condition?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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