A patient is prescribed a loop diuretic for the management of edema. Which electrolyte imbalance is most commonly associated with loop diuretic therapy?

Correct Answer: B

Rationale: Loop diuretics, such as furosemide, are potent diuretics commonly used to manage conditions like edema, heart failure, and hypertension. Loop diuretics work by inhibiting the reabsorption of sodium and chloride in the loop of Henle in the kidney, leading to increased diuresis. However, this mechanism of action can also lead to increased excretion of other electrolytes, such as magnesium.

Correct Answer: A

Rationale: The liver is responsible for secreting bile, which aids in the emulsification and digestion of fats. Bile is produced by the liver and is stored and concentrated in the gallbladder before being released into the small intestine to help with the breakdown of fats during the digestion process. The gallbladder functions as a storage organ for bile produced by the liver. The pancreas secretes digestive enzymes and bicarbonate to aid in the digestion process, while the spleen is mainly involved in immune function and blood storage.

Correct Answer: A

Rationale: The patient's presentation of episodic throbbing headache associated with nausea, vomiting, sensitivity to light and sound, and aura suggests a diagnosis of migraine headache. Migraines are a common neurological condition characterized by recurrent moderate to severe headaches that are often unilateral, pulsating, and aggravated by physical activity. The presence of premonitory symptoms (aura) before the headache is a key feature commonly seen in migraines. Additionally, nausea, vomiting, and sensitivity to light and sound are also common features associated with migraines.

Correct Answer: A

Rationale: The presentation of well-demarcated, hypopigmented macules with fine scaling on the trunk and proximal extremities is classic for tinea versicolor. Tinea versicolor is a common superficial fungal infection caused by Malassezia spp., which leads to hypo- or hyperpigmented patches on the skin. The condition often occurs in individuals with increased sebum production due to factors such as hot and humid climates, sweating, and oily skin. History of sun exposure and outdoor activities is also commonly reported by patients with tinea versicolor. Treatment usually involves antifungal medications applied topically or taken orally to eliminate the fungus. Differentiating tinea versicolor from other skin conditions, such as vitiligo, pityriasis rosea, or seborrheic keratosis, is important for appropriate management.

Correct Answer: B

Rationale: Delegation by succession involves passing on responsibility and authority to a designated successor when the delegator is temporarily unavailable. In this scenario, the unit manager is planning to take her regular official business leave and has recommended her assistant unit manager to assume her position during her absence. This act follows the principle of succession, where the deputy or next in line is entrusted with the duties and decision-making power of the manager. This ensures a smooth transition of responsibilities and allows the operations to continue efficiently in the manager's absence.

Correct Answer: B

Rationale: The clinical scenario described is consistent with a diagnosis of anterior epistaxis due to a prominent vascular lesion located in Little's area, which is an important site for nosebleeds. Silver nitrate cautery is the most appropriate intervention for managing this condition. Silver nitrate cautery is a commonly used method to chemically cauterize and eliminate the friable blood vessels responsible for recurrent epistaxis. It is a cost-effective and minimally invasive technique that can be easily performed in an outpatient setting. Nasal packing with anterior nasal tampons might be considered in cases of severe or refractory epistaxis, but in this scenario, where the source of bleeding is localized and identifiable, silver nitrate cautery is the treatment of choice. Endoscopic cauterization of the sphenopalatine artery and surgical excision of a nasal polyp are unnecessary and overly invasive for the described scenario.

Correct Answer: B

Rationale: Benign prostatic hyperplasia (BPH) is a condition characterized by an abnormal enlargement of the prostate gland, which is non-cancerous. This enlargement can lead to lower urinary tract symptoms such as urinary hesitancy (difficulty starting the urine stream), weak urinary stream, incomplete bladder emptying, frequent urination, urgency, and nocturia. BPH is a common condition in aging men and is not usually associated with prostate cancer. Other conditions like prostate cancer, prostatitis, and prostate adenoma may present with similar symptoms, but BPH is specifically characterized by the non-cancerous enlargement of the prostate gland. Treatment for BPH may include medications to improve symptoms or surgical procedures to reduce the size of the prostate gland.

Correct Answer: C

Rationale: The most effective strategy in preventing more incidence of dengue infection is to target the breeding places of the Aedes mosquitoes, which are the vectors responsible for transmitting the dengue virus. By eliminating stagnant water sources where these mosquitoes breed, such as uncovered containers, flower pots, and discarded tires, the mosquito population can be significantly reduced. This, in turn, helps to lower the risk of dengue transmission to humans. While healthy nutritious food, burning of leaves and garbage, and adequate rest and sleep are important for overall health and immune function, they do not directly address the primary cause of dengue transmission, which is the Aedes mosquito population.

Correct Answer: B

Rationale: The correct action for the nurse to ensure proper insertion technique during a urinary catheterization is to use aseptic technique and sterile equipment. This is crucial in preventing infections and ensuring patient safety. Aseptic technique involves maintaining cleanliness and preventing the introduction of harmful microorganisms during invasive procedures like catheterization. Using sterile equipment helps minimize the risk of introducing bacteria into the urinary tract, which could lead to a urinary tract infection (UTI). Therefore, it is essential that the nurse follows strict infection control protocols and uses sterile equipment to maintain patient safety and well-being during the catheterization procedure.