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Ibuprofen is contraindicated in pregnant patients, particularly during the third trimester. Its use during late pregnancy can lead to complications such as premature closure of the ductus arteriosus, which is a crucial blood vessel in fetal circulation. The closure of this vessel can lead to serious cardiovascular issues in the newborn after birth. Additionally, ibuprofen can potentially affect renal function in both the mother and the fetus.

While there may be considerations when using ibuprofen in patients with asthma or in children aged 7-12 years, it is not universally contraindicated in these populations. In most cases, asthma patients can use ibuprofen safely, although they should be monitored for potential exacerbations. Children aged 7-12 years often receive ibuprofen for a range of conditions, including fever and pain relief, as it is generally considered safe for use in appropriate doses.

The statement regarding ibuprofen being contraindicated in "all patients" is too broad, as there are many patient populations for whom ibuprofen is indicated and beneficial when used correctly. Therefore, the correct answer focuses specifically on the risks associated with ibuprofen usage in pregnant patients.