Correct Answer: C

Rationale: The frequency of contractions is measured from the beginning of one contraction to the beginning of the next contraction. This timing is crucial in determining the progress of labor. Choice A, measuring from peak to peak, is incorrect as it assesses the duration between the highest points of contractions, which is not how frequency is calculated. Choice B, measuring from the beginning to the end of one contraction, is incorrect as it does not consider the start of the next contraction. Choice D, measuring from the end of one contraction to the beginning of the next contraction, is incorrect as it misses the initial onset of the following contraction.

Correct Answer: C

Rationale: The most important intervention for the nurse to include in the client's plan of care following a left nephrectomy with a Jackson-Pratt bulb in place is to record drainage from the drain. Monitoring the drainage is crucial as it helps assess for potential complications such as hemorrhage, infection, or other issues related to the surgical site. Assessing urine output is important post-nephrectomy but not as critical as directly monitoring the drainage. Assessing for back muscle aches may be relevant for pain management but not as crucial as monitoring the drainage. Obtaining body weight daily is not directly related to assessing the surgical drain output and is less critical in this scenario.

Correct Answer: C

Rationale: The correct answer is C. Some salt substitutes can be high in potassium, which may not be suitable for clients with heart failure. Option A is correct as using lemon juice and herbs for flavoring is a good low-sodium alternative. Option B is also correct as canned soups and frozen dinners are typically high in sodium content. Option D is correct as checking food labels for sodium content is an essential part of managing a low-sodium diet. Therefore, the client's statement about using salt substitutes needs correction as it can introduce high levels of potassium, which may not be recommended for individuals with heart failure.

Correct Answer: C

Rationale: The frequency of contractions is measured from the beginning of one contraction to the beginning of the next contraction. This timing is crucial in determining the progress of labor. Choice A, measuring from peak to peak, is incorrect as it assesses the duration between the highest points of contractions, which is not how frequency is calculated. Choice B, measuring from the beginning to the end of one contraction, is incorrect as it does not consider the start of the next contraction. Choice D, measuring from the end of one contraction to the beginning of the next contraction, is incorrect as it misses the initial onset of the following contraction.

Correct Answer: C

Rationale: The correct action for the nurse to take when a pregnant woman is choking and unable to speak is to perform the Heimlich maneuver using subdiaphragmatic thrusts. This technique is recommended for a pregnant woman to prevent harm to the fetus. Option A, cardiopulmonary resuscitation with uterine tilt, is not indicated for a choking episode. Option B, the Heimlich maneuver using chest thrusts, can potentially harm the gravid uterus. Option D, calling 911 immediately before providing assistance, can lead to a delay in addressing the immediate choking emergency.