Correct Answer: D

Rationale: When a client experiences cardiac arrest, their breathing may become insufficient, leading to inadequate elimination of carbon dioxide (CO2) from the body. With reduced CO2 elimination, the level of CO2 in the bloodstream increases, causing respiratory acidosis. This imbalance is characterized by a decrease in blood pH along with an increase in CO2 levels in the blood, resulting in an acidic environment. Respiratory acidosis is the most common imbalance seen in clients who have experienced cardiac arrest, as impaired gas exchange impacts the body's ability to maintain proper acid-base balance.

Correct Answer: A

Rationale: In cases of poisoning, the main goals are to inactivate the poison to prevent further harm, administer the specific antidote if available to counteract the effects of the poison, and support vital organ functions to help the patient recover. Inducing the patient to vomit (III) is not always recommended as it can potentially cause more harm, especially if the ingested substance is corrosive. Therefore, the most appropriate goals in poisoning are to inactivate the poison, administer the specific antidote, and support vital organ functions.

Correct Answer: D

Rationale: The most appropriate oxygen delivery device for a patient with chronic respiratory failure secondary to severe restrictive lung disease requiring continuous supplemental oxygen is a non-rebreather mask. A non-rebreather mask is designed to deliver high-flow oxygen and is typically used for short-term medical treatment in emergency situations or for critically ill patients. It is ideal for providing the highest concentration of oxygen available for inhalation, making it suitable for patients with severe hypoxemia.

Correct Answer: A

Rationale: The patient is exhibiting signs and symptoms of alcohol withdrawal, such as tremors, diaphoresis, hyperactivity, elevated blood pressure, and tachycardia. Lorazepam, which is a benzodiazepine, is commonly used to manage alcohol withdrawal symptoms. It helps alleviate symptoms such as anxiety, agitation, tremors, and seizures by acting on the same brain receptors affected by alcohol. It has sedative, anxiolytic, and anticonvulsant properties which can help stabilize the patient and prevent potential complications of alcohol withdrawal, such as seizures. Haloperidol is an antipsychotic medication used for conditions like schizophrenia and acute psychosis; therefore, it would not be appropriate for alcohol withdrawal. Naloxone is used to reverse opioid overdose, and Benztropin is used to treat Parkinson's disease and extrapyramidal symptoms, so they are not indicated for alcohol

Correct Answer: A

Rationale: The BEST position for a patient in shock is the modified Trendelenburg position. In this position, the patient's legs are elevated above the level of the heart to enhance blood flow back to the heart and vital organs. Placing the patient in the modified Trendelenburg position helps increase venous return, improves cardiac output, and promotes perfusion to vital organs, which can be crucial in managing shock. This position can help stabilize the patient's condition while awaiting further medical intervention.