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:

Wiping from back to front is incorrect and can lead to contamination of the urine sample with bacteria from the anal area. The correct method is to wipe from front to back to reduce the risk of contamination.

Choice B reason:

Urinating a small amount in the toilet before collecting the sample is the correct procedure for obtaining a midstream urine specimen. This helps to flush out any bacteria or contaminants from the urethra, ensuring that the sample collected is as clean as possible.

Choice C reason:

Letting the urine cool to room temperature before sending it to the lab is incorrect. Urine samples should be sent to the lab as soon as possible after collection to ensure accurate results. If there is a delay, the sample should be refrigerated.

Choice D reason:

It is generally recommended to avoid collecting a urine sample during menstruation, as menstrual blood can contaminate the sample and affect the test results.

Choice A reason:

Metoprolol is a beta-blocker commonly used to treat high blood pressure (hypertension). One of its primary therapeutic effects is the reduction of blood pressure. By blocking beta-adrenergic receptors, metoprolol decreases the heart rate and the force of contraction, leading to lower blood pressure.

Choice B reason:

While metoprolol can help manage certain types of dysrhythmias by slowing the heart rate and stabilizing the heart’s rhythm, the primary therapeutic effect for which it is most commonly prescribed is the reduction of blood pressure.

Choice C reason:

Increased urine output is not a direct therapeutic effect of metoprolol. This effect is more commonly associated with diuretics, which are often used in conjunction with beta-blockers to manage hypertension and heart failure.

Choice D reason:

Decreased pulse is a potential effect of metoprolol, as it slows the heart rate. However, this is not the primary therapeutic goal. The main therapeutic effect is the reduction of blood pressure.