Correct Answer: A

Rationale: The patient is most likely experiencing autonomic dysreflexia. Autonomic dysreflexia is a potentially life-threatening condition that can occur in individuals with spinal cord injuries at the level of T6 or above. It is characterized by a sudden onset of severe hypertension, bradycardia, diaphoresis, flushing, and headache in response to a noxious stimulus below the level of injury. The sudden change in position from supine to sitting likely triggered autonomic dysreflexia in this patient.

Correct Answer: D

Rationale: Escherichia coli (E. coli) is the MOST common causative agent of urinary tract infection (UTI), accounting for approximately 80-85% of all cases. E. coli is a type of bacteria that naturally resides in the gastrointestinal tract and can easily migrate to the urinary tract, causing infection. Its prevalence in UTIs is due to various factors such as its ability to adhere to the uroepithelial cells and form biofilms, leading to persistent infections. Therefore, E. coli is the most common organism responsible for UTIs in both community and healthcare settings.

Correct Answer: C

Rationale: It is crucial to ensure that the autoclave is functioning properly to achieve proper sterilization of surgical instruments. If the autoclave is not reaching the required temperature, it signifies a technical issue that needs to be addressed promptly. The nurse should notify the sterile processing department immediately and request maintenance to investigate and resolve the problem. Continuing with sterilization without addressing the temperature issue can compromise the effectiveness of sterilization and pose a risk of infection to patients. Adjusting the settings on the autoclave or using an alternative method of sterilization are not appropriate actions in this situation.

Correct Answer: B

Rationale: In hypovolemic shock, isotonic electrolyte solutions are commonly used for fluid replacement to restore the circulating blood volume. The commonly used isotonic electrolyte solutions for this purpose are 0.9% sodium chloride (normal saline) and lactated Ringer's solution.

Correct Answer: A

Rationale: In a patient with septic shock and refractory hypotension despite fluid resuscitation, the healthcare team should prioritize administering vasopressor medications to increase systemic vascular resistance. Vasopressors such as norepinephrine or vasopressin can be used to support blood pressure and perfusion to vital organs by constricting blood vessels and improving blood flow. By increasing systemic vascular resistance, vasopressors help to counteract the excessive vasodilation seen in septic shock and improve hemodynamic stability. It is crucial to address hypotension promptly in septic shock to prevent organ dysfunction and failure. Other interventions, such as fluid removal through continuous renal replacement therapy, assessing cardiac function with echocardiogram, or optimizing oxygen delivery through a transfusion of packed red blood cells, may be considered based on specific patient factors but do not address the primary issue of inadequate perf