A nurse is preparing to administer 1 mg vitamin K to a newborn. The medication is available in 1 mg/0.5 mL. How much should the nurse administer?

(Round to the nearest tenth. Use a leading zero when applicable. Do not use a trailing zero.)

Choice A reason:

A client with a tracheostomy tube attached to humidified oxygen is not typically at risk for hypokalemia. The primary concerns for these clients are maintaining a patent airway, preventing infection, and ensuring adequate humidification to prevent mucus plugging.

Choice B reason:

A client with an indwelling urinary catheter to gravity drainage is not specifically at risk for hypokalemia. The main risks for these clients include urinary tract infections and ensuring proper catheter care to prevent blockages.

Choice C reason:

A client with a chest tube to water seal is primarily at risk for complications related to the chest tube itself, such as infection, pneumothorax, or improper drainage. Hypokalemia is not a common risk associated with chest tubes.

Choice D reason:

A client with a nasogastric tube to suction is at risk for hypokalemia. Continuous suctioning can lead to the loss of gastric contents, which contain potassium, leading to a decrease in potassium levels in the body. This can result in hypokalemia, which needs to be monitored and managed appropriately.

Choice A reason:

Purple striations: Purple striations, or stretch marks, are more commonly associated with Cushing’s syndrome, which involves excess cortisol production. Addison’s disease, on the other hand, is characterized by insufficient cortisol and aldosterone production.

Choice B reason:

Hirsutism: Hirsutism refers to excessive hair growth in women in areas where hair is normally minimal or absent. It is not typically associated with Addison’s disease. Hirsutism is more commonly linked to conditions involving excess androgens, such as polycystic ovary syndrome (PCOS).

Choice C reason:

Hyperpigmentation: Hyperpigmentation, or darkening of the skin, is a hallmark symptom of Addison’s disease. This occurs due to increased production of melanocyte-stimulating hormone (MSH) as a byproduct of elevated adrenocorticotropic hormone (ACTH) levels. The skin changes are often most noticeable in areas exposed to friction, such as the elbows, knees, and knuckles.

Choice D reason:

Intention tremors: Intention tremors, which occur during purposeful movement, are not typically associated with Addison’s disease. These tremors are more commonly seen in neurological conditions such as multiple sclerosis or cerebellar disorders.