The nurse is caring for a client who receives a prescription for valproic acid in which the maximum safe dosage is 60 mg/kg/day.

How many mg/day is the maximum safe dosage for a client who weighs 176 pounds? (Enter numerical value only.).

The observation(s) by the nurse that require immediate intervention to reduce the likelihood of harm to this client are:

A. The client’s oxygen saturation level is 85%. This is a sign of hypoxemia, which can lead to tissue hypoxia, organ damage, and cardiac arrest. The nurse should administer oxygen therapy and monitor the client’s respiratory status closely.

C. The client’s heart rate is 110 beats per minute. This is a sign of tachycardia, which can indicate worsening heart failure, dehydration, infection, or anxiety. The nurse should assess the client’s fluid balance, vital signs, and symptoms and report any changes to the physician. The nurse should also administer medications as prescribed to control the heart rate and reduce the cardiac workload.

E. The client’s blood pressure is 160/90 mmHg. This is a sign of hypertension, which can increase the risk of stroke, myocardial infarction, and renal failure. The nurse should administer antihypertensive medications as prescribed and monitor the client’s blood pressure and urine output. The nurse should also educate the client on lifestyle modifications to lower blood pressure, such as reducing salt intake, exercising, and managing stress .

The other observations do not require immediate intervention, but they should be addressed as part of the comprehensive nursing care plan for the client with heart failure and COPD. These include:

B. The client is eating less than half of meals. This can indicate poor appetite, nausea, dyspnea, or fatigue, which can affect the client’s nutritional status and energy level. The nurse should encourage the client to eat small, frequent, and balanced meals that are low in sodium, fat, and cholesterol. The nurse should also provide oral hygiene and offer supplements or enteral feeding if needed .

D. The client is reading a book. This can indicate that the client is coping well with the condition and engaging in leisure activities that promote relaxation and mental health. The nurse should praise the client for this positive behavior and provide emotional support and counseling as needed. The nurse should also teach the client about the signs and symptoms of exacerbation and when to seek medical help .

Choice A rationale:

The combination of trimethoprim and sulfamethoxazole has a synergistic effect, which means that the two drugs work together to inhibit bacterial growth more effectively than either drug alone. This combination is commonly used to treat urinary tract infections (UTIs) caused by susceptible bacteria.

Choice B rationale:

The combination of trimethoprim and sulfamethoxazole does not have an additive effect that reduces the dosage and frequency of administration of each drug. Instead, it is prescribed as a fixed combination with specific dosages of each drug.

Choice C rationale:

The combination of trimethoprim and sulfamethoxazole does not have an antagonistic effect that prevents the development of resistance to either drug. In fact, the combination is chosen because it covers a broader spectrum of bacteria and reduces the likelihood of resistance development.

Choice D rationale:

The combination of trimethoprim and sulfamethoxazole does not have a selective effect that targets only the bacteria causing the UTI and spares the normal flora. It affects a wide range of bacteria, including both pathogenic and normal flora.