A woman in labor receives meperidine (Demerol) for pain. The nurse caring for the infant will observe the infant closely for:

Respiratory Depression

Hypothyroidism

Tremors and Hyperreflexia

Congenital Anomalies

Answer and Explanation

The Correct Answer is A

Choice A reason: Meperidine, an opioid, crosses the placenta, risking neonatal respiratory depression. Monitoring breathing is critical post-delivery, making this the correct observation for the infant.

Choice B reason: Hypothyroidism is not associated with meperidine exposure. Opioids primarily affect respiration, so this is irrelevant and incorrect for the expected effect.

Choice C reason: Tremors and hyperreflexia are not typical meperidine effects in newborns; respiratory depression is the primary concern. This is incorrect for the nurse’s focus.

Choice D reason: Congenital anomalies result from chronic exposure, not acute labor analgesia. Meperidine’s immediate risk is respiratory, so this is incorrect for monitoring.

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Correct Answer is ["C","D","E"]

Explanation

Choice A reason: Affinity is not about dosage form but the strength of drug-receptor binding. Dosage is unrelated to receptor interaction, so this is incorrect for affinity’s definition.

Choice B reason: Low affinity means weak attraction to receptors, not strong. High affinity indicates strong binding, so this statement is incorrect.

Choice C reason: High affinity means strong attraction between drug and receptor, enhancing binding and effect. This is accurate, making it a correct choice.

Choice D reason: Affinity influences potency; higher affinity often means greater potency at lower doses. This relationship is correct, making it a correct choice.

Choice E reason: Affinity is the strength of attraction between drug and receptor, a fundamental pharmacological concept. This definition is accurate, so this is a correct choice.

A. Fully Compensated Metabolic Acidosis B. Fully Compensated Metabolic Alkalosis C. Fully Compensated Respiratory Alkalosis D. Fully Compensated Respiratory Acidosis

Correct Answer is B

Explanation

Choice A reason: Metabolic acidosis involves low pH and HCO3-; here, pH is normal, and HCO3- is high. Elevated PaCO2 compensates for high HCO3-, so this is incorrect for the ABG values.

Choice B reason: Normal pH (7.39), high HCO3- (29), and high PaCO2 (47) indicate metabolic alkalosis fully compensated by respiratory retention of CO2. This matches the values, making it correct.

Choice C reason: Respiratory alkalosis has low PaCO2 and normal or low HCO3-. Here, PaCO2 and HCO3- are high, ruling this out, so it’s incorrect for the given ABG profile.

Choice D reason: Respiratory acidosis has high PaCO2 and low pH. Normal pH and high HCO3- suggest metabolic alkalosis, not respiratory acidosis, making this incorrect for the values.

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A woman in labor receives meperidine (Demerol) for pain. The nurse caring for the infant will observe the infant closely for:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Two nurses are discussing the theories of drug-receptor interaction. Which statements are true regarding the affinity of a drug and for its receptor? (Select all that apply)

Correct Answer is ["C","D","E"]

Explanation

Name the imbalance using the following Arterial Blood Gas (ABG) values: pH 7.39, PaCO2 47, HCO3- 29

Correct Answer is B

Explanation

Name the imbalance using the following Arterial Blood Gas (ABG) values: pH 7.48, PaCO2 44, HCO3- 29

The nurse is reviewing the home medication list with the patient. The nurse recognizes that hydrochlorothiazide is used primarily for which condition?

What occurs when a drug binds to a receptor in the body?

Name the pulmonary imbalance using the following Arterial blood Gas (ABG) values: pH 7.41, PaCO2 46, HCO3- 30

Name the imbalance using the following Arterial Blood Gas (ABG) values: pH 7.31, PaCO2 41, HCO3- 20

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