A nurse is preparing to administer amoxicillin 2 g/day PO divided into two doses. The amount available is amoxicillin 500 mg tablets.

How many tablets should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

The correct answer is d) Tighten the abdominal muscles while exhaling.

Choice A Reason:

“Raise both shoulders while breathing deeply” is incorrect. Diaphragmatic breathing focuses on using the diaphragm rather than the shoulders. Raising the shoulders can lead to shallow chest breathing, which is less effective for oxygen exchange.

Choice B Reason:

“Inhale through the mouth” is incorrect. For diaphragmatic breathing, it is recommended to inhale through the nose. This helps filter, warm, and humidify the air before it reaches the lungs.

Choice C Reason:

“Exhale through the nose” is incorrect. While exhaling through the nose is beneficial in some breathing exercises, diaphragmatic breathing typically involves exhaling through pursed lips. This technique helps slow down the exhalation and keeps the airways open longer.

Choice D Reason:

“Tighten the abdominal muscles while exhaling” is correct. Tightening the abdominal muscles helps push the diaphragm up, forcing air out of the lungs more efficiently. This action is a key component of effective diaphragmatic breathing.

Choice A reason: Asthma

Diphenhydramine is an antihistamine that can cause drying of the airways and thickening of bronchial secretions, which might exacerbate asthma symptoms. However, it is not strictly contraindicated in asthma patients. Instead, caution is advised, and it should be used under medical supervision if necessary.

Choice B reason: Hypertension

While diphenhydramine can cause mild increases in blood pressure due to its anticholinergic effects, it is not contraindicated in patients with hypertension. Patients with hypertension should use it cautiously and under medical advice, but it is not an absolute contraindication.

Choice C reason: Glaucoma

Diphenhydramine is contraindicated in patients with glaucoma, particularly closed-angle glaucoma. This is because diphenhydramine has anticholinergic properties that can increase intraocular pressure, potentially worsening the condition. Patients with glaucoma should avoid using diphenhydramine to prevent complications related to increased eye pressure.

Choice D reason: Depression

Diphenhydramine is not contraindicated in patients with depression. However, it can cause drowsiness and sedation, which might affect mood and energy levels. Patients with depression should use it cautiously and under medical supervision, but it is not an absolute contraindication.