Correct Answer: A

Rationale: The clinical presentation of fever, chills, headache, and myalgia after a trip to sub-Saharan Africa is highly indicative of malaria. Specifically, the presence of intraerythrocytic ring forms and trophozoites on blood smear examination points towards Plasmodium falciparum as the most likely causative agent. Plasmodium falciparum is the most deadly of the Plasmodium species that cause malaria and is responsible for the majority of severe malaria cases worldwide. It is transmitted through the bite of infected Anopheles mosquitoes. Treatment for Plasmodium falciparum infection usually involves antimalarial medications such as artemisinin-based combination therapies.

Correct Answer: A

Rationale: Von Willebrand disease is a hereditary bleeding disorder that results from a deficiency or dysfunction of von Willebrand factor (vWF), a protein that plays a key role in platelet adhesion and the initiation of primary hemostasis. The clinical manifestations of von Willebrand disease include recurrent mucocutaneous bleeding, such as nosebleeds, easy bruising, and gum bleeding. Laboratory findings typically show a prolonged bleeding time due to impaired platelet function, while platelet count, PT (prothrombin time), and aPTT (activated partial thromboplastin time) are usually normal. This distinguishes von Willebrand disease from other bleeding disorders such as hemophilia A (Factor VIII deficiency), which would show abnormal PT and aPTT due to deficiencies in specific clotting factors. Thrombocytopenia, on the other hand, would be characterized by a low platelet count

Correct Answer: A

Rationale: Shoulder dystocia is an obstetric emergency where one of the baby's shoulders becomes impacted behind the mother's pubic bone after the head delivers. This can lead to compression of the umbilical cord and compromise fetal oxygenation. The most critical nursing intervention in managing shoulder dystocia is applying suprapubic pressure to dislodge the impacted shoulder and allow for delivery of the baby. By gently pushing downwards on the mother's abdomen just above the pubic bone, the shoulder can be released, and the baby can be delivered successfully. This intervention should be prioritized to prevent potential complications for both the mother and the baby. Episiotomy may be considered if necessary, but it is secondary to addressing the shoulder dystocia. Oropharyngeal airway insertion and administering magnesium sulfate are not indicated in the immediate management of shoulder dystocia.

Correct Answer: B

Rationale: The patient's presenting symptoms of chest pain worsened by inspiration and relieved by sitting forward, with associated DVT in the lower extremity, suggest a high likelihood of pulmonary embolism. Chest pain that worsens with inspiration due to pleuritic involvement is a classic symptom of pulmonary embolism. Additionally, the presence of DVT in the lower extremity represents a risk factor for the development of pulmonary embolism, as clots originating in the deep veins can travel to the pulmonary circulation to cause an obstruction. Patients with pulmonary embolism may also exhibit signs of right heart strain, such as tachycardia, tachypnea, and sometimes hemoptysis.

Correct Answer: A

Rationale: Battery refers to the intentional touching of another person without consent, resulting in harm or offense. In this scenario, the nurse inserted the urinary catheter into the client's urethra without the client's consent, leading to an injury. This action constitutes battery as the nurse carried out a medical procedure without the client's permission, resulting in harm to the client. The client can sue the nurse for battery in this situation.