What is the appropriate ratio of chest compressions to rescue breaths for adult CPR?

Correct Answer: C

Rationale: The appropriate ratio of chest compressions to rescue breaths for adult CPR is 30 compressions to 2 breaths. This means that after every 30 chest compressions, two rescue breaths should be given. This ratio helps in maintaining oxygen circulation in the body while also ensuring that the heart is being effectively pumped to circulate blood. The emphasis on chest compressions is critical in maintaining blood flow to vital organs during cardiac arrest, while the rescue breaths help in providing oxygen to the patient's lungs. This ratio is recommended by organizations like the American Heart Association for performing high-quality adult CPR.

Correct Answer: C

Rationale: Lamotrigine (Lamictal) is known to cause a serious rash, such as Stevens-Johnson syndrome or toxic epidermal necrolysis, which can be life-threatening. Therefore, it is crucial for patients taking Lamotrigine to be aware of this potential side effect and report any skin rashes to their healthcare provider promptly. Early detection and appropriate management are essential in preventing serious complications related to these rashes.

Correct Answer: B

Rationale: Loop diuretics such as furosemide are commonly prescribed for the management of heart failure to reduce fluid overload and lower blood pressure by increasing the excretion of sodium and water. These medications promote the loss of potassium through increased urinary output. Hypokalemia, or low potassium levels in the blood, is the most common electrolyte imbalance associated with loop diuretic therapy. Potassium is an essential electrolyte for proper functioning of the heart, muscles, and nerves. Low potassium levels can lead to symptoms such as muscle weakness, cramps, and potentially life-threatening cardiac arrhythmias. Patients on loop diuretics are often monitored for potassium levels, and sometimes potassium supplements may be prescribed to prevent or correct hypokalemia.

Correct Answer: B

Rationale: Cohort studies are types of epidemiological studies that involve a group of individuals who share a common characteristic or experience and are followed over time to observe the development of a particular health outcome. This type of study is useful in determining the incidence of a disease, identifying risk factors, and studying the natural history of a disease. Cohort studies allow researchers to investigate the relationship between exposure and outcome by following participants forward in time. It helps in establishing causality and is particularly useful for studying rare exposures or outcomes. In contrast, cross-sectional studies involve collecting data from a population at a single point in time, experimental studies involve interventions and control groups, and case-control studies involve comparing individuals with a particular health outcome (cases) to those without the outcome (controls) retrospectively.

Correct Answer: C

Rationale: Assessing the patient's airway is the first priority when admitting injured patients. A clear airway is crucial for effective breathing. If the airway is obstructed, the patient will not be able to breathe properly, leading to serious consequences. Therefore, ensuring a patent airway takes precedence over assessing breathing, circulation, or vital signs. Once the airway is secured, the emergency team can proceed with assessing breathing, circulation, and vital signs in order to provide appropriate treatment and care.