Critical Care Nursing Questions

Questions 80

ATI RN

ATI RN Test Bank

Critical Care Nursing Questions Questions

Question 1 of 5

Following an emergency Cesarean delivery, the nurse encourages the new mother to breastfeed her newborn. The client asks why she should breastfeed now. Which information should the nurse provide?

Correct Answer: A

Rationale: The correct answer is A because breastfeeding helps stimulate the uterus to contract, which reduces the risk of postpartum hemorrhage in the mother. When the baby suckles at the breast, it triggers the release of oxytocin, a hormone that causes the uterus to contract. This contraction helps the uterus to return to its pre-pregnancy size and shape, promoting faster healing and reducing bleeding. Choice B is incorrect because lactation initiation is a separate process that involves hormonal changes and milk production, which may not occur immediately after delivery. Choice C is incorrect as bonding can occur through various interactions beyond breastfeeding. Choice D is incorrect as neonatal hypoglycemia is primarily prevented by ensuring the baby receives adequate nutrition, which can also be achieved through other feeding methods besides breastfeeding.

Question 2 of 5

Following insertion of a pulmonary artery catheter (PAC),a bthirbe. cpohmy/tessitc ian orders the nurse to obtain a blood sample for mixed venous oxygen saturation (SvO ). Which action by the nurse best ensures the obtained value is accurate?

Correct Answer: B

Rationale: The correct answer is B because calibrating the system with central venous and arterial blood samples ensures accuracy of the mixed venous oxygen saturation (SvO2) measurement. This calibration allows for comparison of the values obtained from both sources to confirm the accuracy of the measurement. Choice A is incorrect because zero referencing the transducer at the level of the phlebostatic axis does not directly address the accuracy of the SvO2 measurement. Choice C is incorrect because ensuring patency of the catheter using normal saline pressurized at 300 mm Hg does not directly impact the accuracy of the SvO2 measurement. Choice D is incorrect because using noncompliant pressure tubing does not ensure the accuracy of the SvO2 measurement. The length of the tubing and the presence of stopcocks are not directly related to obtaining an accurate SvO2 value.

Question 3 of 5

The nurse assesses a patient who is admitted for an overdo se of sedatives. The nurse expects to find which acid-base alteration?

Correct Answer: B

Rationale: The correct answer is B: Hypoventilation and respiratory acidosis. When a patient overdoses on sedatives, it can lead to respiratory depression causing hypoventilation. Hypoventilation results in retention of CO2, leading to respiratory acidosis. This is because the body is not effectively exhaling CO2, causing an increase in carbonic acid levels and a decrease in blood pH. The other choices are incorrect because hyperventilation would lead to respiratory alkalosis (Choice A), hypoventilation does not cause respiratory alkalosis (Choice C), and normal oxygen levels do not indicate the acid-base imbalance caused by sedative overdose (Choice D).

Question 4 of 5

The nurse is caring for a patient with a subarachnoid hemorrhage who is intubated and placed on a mechanical ventilator with 10 cm H2O of peak end-expiratory pressure (PEEP). When monitoring the patient, the nurse will need to notify the healthcare provider immediately if the patient develops:

Correct Answer: D

Rationale: The correct answer is D: Increased jugular venous distention. In a patient with a subarachnoid hemorrhage and on mechanical ventilation, increased jugular venous distention can indicate increased intracranial pressure, which can be life-threatening. The nurse should notify the healthcare provider immediately as it may require urgent intervention to prevent further neurological deterioration. A: Oxygen saturation of 93% is within the acceptable range for a patient on mechanical ventilation and may not require immediate notification. B: Respirations of 20 breaths/minute are within normal limits for a ventilated patient and do not necessarily indicate a critical condition. C: Green nasogastric tube drainage may indicate the presence of bile and could be related to gastrointestinal issues, but it does not pose an immediate threat to the patient's neurological status.

Question 5 of 5

A patient with hypotension and an elevated temperature after working outside on a hot day is treated in the emergency department (ED). The nurse determines that discharge teaching has been effective when the patient makes which statement?

Correct Answer: C

Rationale: The correct answer is C: "I should drink sports drinks when working outside in hot weather." This statement is correct because hypotension and elevated temperature could indicate dehydration and electrolyte imbalance due to excessive sweating in hot weather. Drinking sports drinks can help replenish electrolytes lost through sweating and prevent dehydration. Incorrect choices: A: Taking salt tablets can lead to an imbalance in electrolytes and worsen the condition. B: Acetaminophen can lower fever but does not address dehydration or electrolyte imbalance. D: Moving to a cool environment when feeling confused is important but does not address the underlying issue of dehydration and electrolyte imbalance.

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